DEPARTMENT OF ENERGY, LABOR & ECONOMIC GROWTH

                            DIRECTOR'S OFFICE

                          MICHIGAN BOILER RULES


(By authority conferred on the director of the department of energy, labor  & 
economic growth by section 4 of 1965 PA 290, executive  reorganization  order 
no. 2008-4, MCL 445.2025)


                        PART 1.  GENERAL PROVISIONS

R 408.4001   Scope.
  Rule 1. These rules establish minimum standards of safety  for   the   use, 
construction, installation, inspection, alteration, and  repair  of  boilers; 
licensing of boiler inspectors, boiler repairers,  and   boiler   installers; 
requirements for permits to install, repair, and alter;  and   fees   to   be 
charged.

  History:  1979 AC.


R 408.4011   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4012  Definitions.
  Rule 12.  (1)  "Accident" means a sudden  and  accidental  breakdown  of  a 
boiler or a part of a boiler that results in physical damage  to  the  boiler 
which necessitates the repair or replacement of the boiler or a part  of  the 
boiler.  "Accident" does not mean a breakdown due to  any  of  the  following 
unless a unique or unusual  explosion  hazard  exists  as  a  result  of  the 
breakdown:
  (a)  Normal erosion.
  (b)  Corrosion.
  (c)  Wastage of metal that requires restoration.
  (d)  Leaking tubes.
  (e)  Weakened metal, such as water legs or handhole areas.
  (2)  "Act" means 1965 PA 290, MCL 408.751 et seq. 
  (3)  "Aftercooler" means a device used for lowering the  temperature  of  a 
boiler blowoff discharge before it enters the building drain.
  (4)  "Alteration" means any change in the item described  on  the  original 
manufacturer's data report that affects the pressure-containing capability of 
the boiler or its piping.  A nonphysical change such as an  increase  in  the 
maximum  allowable  working  pressure  (internal  or  external)   or   design 
temperature of a boiler or its piping is an alteration.
  (5)  "ASME," "ASME boiler and pressure vessel code," "ASME code," or "code" 
means the boiler  and  pressure  vessel  code  of  the  American  Society  of 
Mechanical Engineers, with addenda, as prescribed and approved by the council 
of the society.
  (6)  "Authorized inspector" means an individual who  is  designated  as  an 
authorized inspector by an authorized inspection agency, who  holds  a  valid 
certificate of competency and national board commission with an  "A"  or  "B" 
endorsement, and who is employed by the  authorized  inspection  agency  that 
assumes responsibility for the individual's actions.
  (7)  "Board of boiler rules" or "board" means the board created by the act.
  (8)  "Boiler assembler"  means  a  corporation,  company,  partnership,  or 
individual who assembles a boiler that has been  delivered  in  pieces.   For 
ASME code section I power boiler assemblies, a boiler assembler shall possess 
the appropriate code symbol stamps.
  (9)  "Boiler blowoff piping" means the piping, fittings,  and  valves  from 
the boiler to the blowoff tank, blowoff separator, or  other  safe  point  of 
discharge through which the water in  the  boiler  may  be  blown  out  under 
pressure, except for drains such  as  those  used  in  water  columns,  gauge 
glasses, or piping to feed water regulators and similar devices.
  (10)  "Boiler blowdown vessel" means an unfired pressure vessel into  which 
water is discharged above atmospheric pressure from a boiler blowoff line.
  (11)  "Boiler installation" means the installation of a  boiler,  including 
all connected piping, valves, fittings, flanges, firing equipment,  controls, 
appurtenances, and auxiliaries.  The term  includes  the  field  assembly  of 
boilers.
  (12)  "CSD-1" means the ASME code  for  controls  and  safety  devices  for 
automatically fired boilers.
(13)  "Certificate of competency" means a certificate issued to a person  who 
has passed an examination for inspectors prescribed by the  board  of  boiler 
rules.
  (14)  "Chief inspector" means the chief boiler  inspector  appointed  under 
the act.
  (15)  "Condemned boiler"  means  a  boiler  that  has  been  inspected  and 
declared unsafe or rejected for use by an inspector who is qualified to  take 
such action and who  has  applied  a  stamping  or  marking  designating  its 
rejection.
  (16)  "Department" means the  department  of  energy,  labor  and  economic 
growth.
  (17)  "Deputy inspector" means an inspector who is licensed under  the  act 
and appointed by the director.
  (18)   "Existing  installation"  means  and  includes  any   steam   boiler 
constructed, installed, placed in operation, or contracted for before  August 
10, 1917, or any hot water heating or supply boiler  constructed,  installed, 
placed in operation, or contracted for before the  effective  date  of  these 
rules.
  (19)  "External inspection" means an inspection which  is  conducted  while 
the boiler is under pressure and which does not involve  examination  of  the 
internal surfaces of the pressure parts of the boiler.
  (20)  "Field assembly" means assembling prefabricated boiler pressure parts 
without field welding or riveting.
  (21)  "Field erection" means the erecting and assembling of boiler parts by 
welding, riveting, or other fabrication processes.
  (22)  "Flash tank" means a closed vessel equipped with internal baffles  or 
an apparatus for the purpose of separating moisture from flash  steam  as  it 
passes through the vessel.
  (23)  "Hobby" means an interest or activity that a person pursues in his or 
her leisure time without compensation.
  (24)  "Hot water heating and hot water supply boiler" means a  boiler  that 
operates at pressures of not more than 160 psi or temperatures  of  not  more 
than 250 degrees Fahrenheit, at or near the boiler outlet.
  (25)  "Inspector" means an individual who  holds  a  valid  certificate  of 
competency and national board commission.
  (26)  "Internal inspection" means an inspection made when a boiler is  shut 
down and handholes or manholes are opened for inspection of the interior.
(27)  "Labeled" means devices, equipment, appliances, or  material  to  which 
have been affixed a label, seal, symbol,  or  other  identifying  mark  of  a 
nationally  recognized  testing  laboratory,  inspection  agency,  or   other 
organization  concerned  with  product  evaluation  that  maintains  periodic 
inspection of the production of the items and by whose label the manufacturer 
attests to compliance with applicable nationally recognized standards.
  (28)  "Licensed boiler installer" means a person licensed under the act  to 
engage in the business of making piping connections to a  boiler  or  in  the 
business of field-assembling boilers.
  (29)  "Licensed boiler repairer" means a person licensed under the  act  to 
engage in making or supervising all phases of boiler repair,  alteration,  or 
field erection.
  (30)  "Listed" means equipment, appliances, or material included in a  list 
published by a nationally recognized testing laboratory,  inspection  agency, 
or other  organization  concerned  with  product  evaluation  that  maintains 
periodic  inspection  of  production  of  listed  equipment,  appliances,  or 
materials, and whose listing states either that the equipment, appliances, or 
material meets nationally recognized standards or has been tested  and  found 
suitable for use in a specified manner.  The  authority  having  jurisdiction 
shall utilize the system employed by the listing organization to  identify  a 
listed product.
  (31)  "Mechanical assembly"  means  the  work  necessary  to  establish  or 
restore a pressure retaining boundary whereby pressure  retaining  capability 
is established through a mechanical, chemical, or physical interface.
  (32)  "Mechanical repair"  means  a  method  of  repair  which  restores  a 
pressure retaining boundary to a safe and satisfactory  operating  condition, 
where the pressure retaining boundary is established by a method  other  than 
welding or brazing.
  (33)  "Miniature boiler" means a power boiler that does not have any of the 
following:
  (a)  An inside diameter of the shell of more than 16 inches.
  (b)  A working pressure of more than 100 psig.
  (c)  A gross volume of more than 5 cubic feet.
  (d)  More than 20 square feet of heating surface.
  (34)   "Miniature  locomotive  boiler"  means  a  miniature   hobby   steam 
locomotive boiler which operates on a narrow gauge track that is less than 24 
inches wide and which is for public display or use.
  (35)   "Modular  boiler"  means  a  steam  or  hot-water  heating  assembly 
consisting of a grouping of individual boilers called modules, intended to be 
installed as a unit, with a single inlet and a single outlet.  Modules may be 
under 1 jacket or may be individually jacketed. 
  (36)  "NBIC" means national board inspection code.
  (37)  "New  boiler"  means  a  boiler  constructed,  installed,  placed  in 
operation, or contracted for after July 1, 1966.
  (38)  "Nonstandard boiler" means a boiler that does not bear  the  national 
board stamping or the stamp of any state or political subdivision  which  has 
adopted a standard of construction equivalent to that required by  the  board 
of boiler rules.
  (39)  "Owner or user" means a person,  firm,  partnership,  or  corporation 
that owns or operates a boiler within this state.
  (40)  "Out-of-use boiler" means a boiler not ready for use having the  fuel 
supply,  electricity,  and  all  piping  that  may  pressurize   the   boiler 
disconnected.
  (41)  "Portable boiler" means a boiler  which  is  primarily  intended  for 
temporary location and which is, by its  construction  and  usage,  obviously 
portable.
  (42)  "Pressure-retaining items" means any boiler, pressure vessel, piping, 
or material  used  for  the  containment  of  pressure,  either  internal  or 
external.  The pressure may be obtained from an external source,  or  by  the 
application of heat from a direct source, or any combination thereof.
  (43)  "Reinstalled boiler"  means  a  boiler  which  is  removed  from  its 
original setting and which is reinstalled at the same location or reinstalled 
at a new location.
  (44)  "Rental boiler" means a boiler which is in temporary use for not more 
than 1 year and which may or may not  be  installed  inside  a  boiler  room, 
temporary room, or temporary shed or without external covering.
  (45)  "Repair" means the work necessary to restore a boiler or  its  piping 
to a safe and satisfactory operating condition.
  (46)  "Safe point of discharge"  means  a  point  of  discharge  that  will 
protect personnel and property from injury due to discharge.
  (47)  "Special inspector" means a boiler inspector who holds a  license  in 
the state of Michigan pursuant to 1965 PA 290, MCL 408.751 et seq. and who is 
regularly employed by an insurance company authorized  to  insure  against  a 
loss from boiler accidents in this state or by any city that is exempt  under 
the act and has an authorized boiler inspection department.
  (48)  "Standard boiler" means a boiler that bears the stamp of the national 
board of boiler and  pressure  vessel  inspectors  or  of  another  state  or 
political subdivision which has adopted a standard of construction equivalent 
to that required by the board of boiler rules of this state.
  (49)  "Traction boiler" means a boiler designed for the express purpose  of 
pulling farm equipment or to convert steam power into flywheel energy driving 
farm apparatus such as threshers, saws, or grinding equipment.
  (50)  "Used boiler" means a boiler that is being reinstalled  by  the  same 
owner.
  (51)  "Water heater" means a heater for use  in  commercial  or  industrial 
sizes providing corrosion resistance  for  supplying  potable  hot  water  at 
pressures not exceeding 160 psi or temperatures  not  exceeding  210  degrees 
Fahrenheit.  A water heater that does not exceed  any  of  the  following  is 
exempt from these rules:
  (a)  A heat input of more than 200,000 BTU per hour.
  (b)  A water temperature of more than 210 degrees Fahrenheit.
  (c)  A nominal water-containing capacity of more than 120 gallons.

  History:  1998-2000 AACS; 2002 AACS; 2006 AACS; 2009 MR 10, Eff.  July  27, 
2009


R 408.4013   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4015   Rescinded

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4017   Rescinded

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4019   Rescinded

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4021   Rescinded

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4023   Rescinded

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4024  Adoption of NBIC by reference.
  Rule  24.   (1)   The  owner  shall  ensure  the  inspection,  repair,  and 
alteration of boilers, piping, and blowdown vessels is in accordance with the 
NBIC, 2007 edition, except as modified by these rules.  The code  is  adopted 
by reference in these rules and available  for  inspection  at  the  Michigan 
Department of Energy, Labor & Economic Growth, Bureau of Construction  Codes, 
6546 Mercantile Way, Lansing, Michigan 48911 or from the  National  Board  of 
Boiler and Pressure Vessel Inspectors, 1055 Crupper  Avenue,  Columbus,  Ohio 
43229, at a cost as of the time of adoption of these amendatory rules  for  a 
total of $189.50.
  (2)  The accreditation program  described  in  the  NBIC  for  repairs  and 
alterations to pressure retaining items is mandatory for repairs to all power 
boilers and high pressure high temperature water boilers and  alterations  to 
any boiler not exempt by these rules.  Repair companies in  possession  of  a 
certificate of authorization issued by  the  national  board  of  boiler  and 
pressure vessel inspectors to repair and alter pressure retaining items shall 
have in their employ an individual with an appropriate class repairer license 
issued by the boiler  division  of  the  department.   Repair  companies  not 
currently in possession of the certificate of authorization or a  certificate 
of authorization issued by ASME shall have 1 year from the date  of  adoption 
of this rule to secure the certificate.  Companies currently in possession of 
a valid certificate issued by ASME have until the next certificate review  or 
1 year, whichever is greater, to  secure  the  certificate  of  authorization 
identified above.  The board may waive the time  requirement  if  appropriate 
justification is presented.
  (3)  Where the text of the NBIC refers to  the  "certificate  holder,"  the 
reference shall apply to all  licensed  boiler  repairers,  except  when  the 
reference is in relation to completion of NBIC forms and NBIC  stamping,  the 
reference  shall  refer  to  repair  companies  in  possession  of  a   valid 
certificate of authorization issued by  the  national  board  of  boiler  and 
pressure vessel inspectors to repair and alter pressure retaining items.
  (4)  The standard welding procedures referenced in the  NBIC  are  accepted 
for use in this state, but are not mandatory.  A licensed boiler repairer who 
elects to use 1 or more of the standard welding procedures shall file a  list 
of the standard welding procedure  identification  numbers  with  the  boiler 
division of the department  before  conducting  any  repairs  or  alterations 
requiring welding.

  History:  1998-2000 AACS; 2002 AACS; 2006 AACS; 2009 MR 10, Eff.  July  27, 
2009.


R 408.4025  ASME code; adoption by reference.
  Rule 25.  (1)  A boiler, blow down vessel,  and  expansion  tank  shall  be 
constructed as prescribed by these rules and the  ASME  boiler  and  pressure 
vessel code, sections I, II, III, IV, V, VIII, IX, X, XI,  2007  edition  and 
its 2008a addenda, and ASME code  B31.1,  2007  edition,  power  piping,  are 
adopted by reference in these rules and are available for inspection  at  the 
Michigan  Department  of,  Energy,  Labor  &  Economic  Growth,   Bureau   of 
Construction Codes, 6546 Mercantile Way, Lansing, Michigan 48911 or from  the 
ASME International, 22 Law Drive, Fairfield, New Jersey 07007, at a  cost  as 
of the time of adoption of these amendatory rules of $12,874.99  and  $315.00 
respectively.
  (2)   The  board  may  accept  pressure-retaining  items  which  have  been 
constructed to standards other  than  ASME  standards  and  which  have  been 
accepted by application of the national board of boiler and  pressure  vessel 
inspectors' criteria for registration procedure.
  (3)  The owner shall  not  recalculate  design  maximum  allowable  working 
pressures based on ASME codes published after  1998  for  boilers  in-service 
before December 31, 1998.

  History:  1979 AC; 1985 AACS; 1995 AACS; 1998-2000 AACS;  2002  AACS;  2006 
AACS; 2009 MR 10, Eff. July 27, 2009.


R 408.4026  Inspection and stamping during construction.
  Rule 26. The manufacturer shall register a  boiler,  blowdown  vessel,  and 
expansion tank other than a cast sectional boiler built  or  constructed  for 
use in this state after the effective date of these rules, with the  national 
board of boiler and pressure vessel inspectors.

  History:  1995 AACS; 1998-2000 AACS; 2009 MR 10, Eff. July 27, 2009.


R 408.4027  Adoption; ASME code CSD-1.
  Rule 27.  (1)  The owner shall ensure that the  installation,  maintenance, 
operation, and testing of controls and safety devices is in  accordance  with 
manufacturer's instructions and ASME code  CSD-1,  2006  edition,  except  as 
modified by these rules.  The code is adopted by reference in these rules and 
available for inspection at  the  Michigan  Department  of  Energy,  Labor  & 
Economic Growth, Bureau of Construction Codes, 6546 Mercantile Way,  Lansing, 
Michigan 48911 or from the ASME, 22 Law Drive, Fairfield, New  Jersey  07007, 
at a cost as of the time of adoption of these amendatory rules of $85.00.
  (2)  An owner or user of a boiler system shall ensure that the  maintenance 
and testing of controls and safety devices is conducted by an individual with 
a valid mechanical contractor license  with  the  appropriate  classification 
pursuant to 1984 PA 192, MCL 338.971 et seq.
  (3)  An owner  or  user  shall  provide  the  inspector,  at  the  time  of 
certificate inspection, with evidence showing what tests have been  completed 
annually.  The evidence shall  be  a  dated  and  signed  service  report  or 
checklist,  listing  each  control  and  safety  device   tested   with   the 
manufacturer's name, model number, set point,  and  actual  operational  test 
point.  An example of a report or checklist  may  be  found  in  CSD-1,  2006 
edition, appendix C.  If an owner does not provide  the  inspector  with  the 
required evidence  of  annual  testing  for  each  year  between  certificate 
inspections, then the inspector may issue a certificate of inspection  for  a 
term less than that stated in R 408.4057.
Exception:  For hot water heating boilers with a  BTU  input  of  400,000  or 
less, the requirements of this rule need only be  conducted  once  during  an 
inspection cycle but shall  be  performed  within  12  months  prior  to  the 
certificate inspection required by R 408.4057(1)(c).
  (4)  The owner, user, or operator of a boiler system shall ensure that  the 
daily, weekly, and monthly operational checks are  performed  and  documented 
pursuant  to  the  manufacturer's  instructions  and  these  rules.   If  the 
manufacturer's  instructions  are  not  available,   CSD-1,   2006   edition, 
nonmandatory appendix D  contains  a  recommended  checklist  for  additional 
information on periodic checks.
  (5)  A manually operated remote shutdown switch as required by CSD-1,  2006 
edition, shall be located outside of each exit access doorway to  the  boiler 
room.  The switch may be located just inside each exit access doorway  should 
a possibility of tampering or  weather  conditions  exist.   A  licensee  may 
request a deviation from the  requirements  of  this  subrule  by  submitting 
drawings clearly showing the deviation  and  stating  justification  for  the 
request  to  the  chief  inspector  for  review  and  approval   before   the 
installation of a boiler.  The chief inspector shall notify the  licensee  of 
the approval or denial of the request.
  (6)  A single manually-operated remote shutdown switch may  be  used  in  a 
multiple boiler installation that shares a common boiler room.
  Exception:  Kitchen cooking boilers, steam kettles, and steam cookers  used 
for food preparation located in a kitchen shall be  exempt  from  a  manually 
operated remote shutdown switch.
  (7)  Where applicable,  the  boiler  installation  shall  comply  with  the 
Michigan mechanical code, R 408.30901 to R 408.30998, Michigan plumbing code, 
R 408.30701 to R 408.30796 and Michigan electrical code,  R  408.30801  to  R 
408.30880.

  History:  1995 AACS; 1998-2000 AACS; 2002 AACS; 2006 AACS; 2009 MR 10, Eff.
July 27, 2009.


R 408.4028   Manufacturer's data reports; filing.
  Rule 28.  A manufacturer's data report for boilers  shall  be   signed   by 
an authorized inspector and shall be filed by the manufacturer    with    the 
chief inspector before installation.  A data report  that  is  signed  by  an 
authorized inspector and the ASME stamp on the boiler denotes that the boiler
 has  been constructed in accordance with these  rules.   If  a   boiler   is 
of   special  design,  blueprints  showing  details   of     the     proposed 
construction  shall  be submitted to the chief inspector  and  his   or   her 
approval  shall  be  secured before construction is started.

  History:  1995 AACS; 2006 AACS.

  Editor's note:  The R number for this rule has been  reassigned.  Former  R 
408.4028 was rescinded effective June 3, 1971.


R 408.4029    Allowable pressure of noncode boilers.
  Rule 29. The maximum allowable pressure of a boiler which  does  not  carry 
the American society of mechanical engineers code symbol may  be  computed in 
accordance with the requirements of R 408.4212(1).

  History:  1979 AC.


R 408.4031  Installation and reinstallation of boilers.
  Rule 31.  (1)  The owner shall ensure that the installation of a new boiler 
or a reinstalled boiler is in  accordance  with  the  requirements  of  these 
rules, the ASME boiler and pressure  vessel  code,  2007  edition,  which  is 
adopted by reference in R 408.4025  and  the  NBIC  2007  edition,  which  is 
adopted by reference in R 408.4024.
(2)  Where applicable, the boiler installation shall comply with the Michigan 
mechanical code, R 408.30901  to  R  408.30998,  Michigan  plumbing  code,  R 
408.30701 to R 408.30796 and Michigan  electrical  code,  R  408.30801  to  R 
408.30880.
Exception:  (1)  The ASME code requirement for the completion of a  P4B  data 
report for the installation of mechanically assembled boiler external  piping 
is not required.
(2)  The NBIC code, part 1, section 2, paragraph 2.4.4, is  enforced  by  the 
Michigan plumbing code, R 408.408.30701 to R 408.30796.
(3)  Witnessing of the pressure test required by the NBIC part 1, section  2, 
paragraph 2.10.2, is not required.
(4)  The NBIC code, part 1, section 3, paragraph 3.6.1, is  enforced  by  the 
Michigan mechanical code, R 408.30901 to R 408.30998.

  History:  1979 AC; 1985 AACS; 1995 AACS; 1998-2000 AACS;  2001  AACS;  2002 
AACS; 2006 AACS; 2009 MR 10, Eff. July 27, 2009.


R 408.4032  Non-boiler external piping; power boilers; adoption of  standards 
by reference.
  Rule 32.  (1)  The owner shall ensure that the installation of  piping  not 
covered by the ASME boiler and pressure vessel code, section I, 2007 edition, 
and its 2008a addenda is  installed  as  prescribed  by  the  ASME  code  for 
pressure piping, B31.1, 2007 edition, adopted by reference in R 408.4025.
  (2)  The owner of a chemical plant or petroleum refinery shall comply  with 
subrule (1) of this rule or shall ensure the  installation  is  installed  as 
prescribed by the ASME code for chemical  plants  and  petroleum  refineries, 
B31.3, 2007 edition.
  (3)  A licensee under this rule is not required to  possess  an  ASME  code 
symbol stamp, but shall hold a valid installer's license.
  (4)  The owner shall ensure that the installation of all of  the  following 
piping is in accordance with subrule (1) of this rule:
  (a)  Blowoff piping beyond the second  valve  out  to  the  safe  point  of 
discharge.
  (b)  Steam piping out to the load.
  (c)  Feed-water piping from the pump.
  (d)  Condensate piping.

  History:  1995 AACS; 1998-2000 AACS ; 2002 AACS; 2006  AACS;  2009  MR  10, 
Eff. July 27, 2009.


R 408.4033   Permits;   documentation   for   installation,   reinstallation, 
alteration, and repair of boilers, boiler  external  piping,  and  non-boiler 
external piping.
  Rule 33.  (1)  All  of  the  following  provisions  apply  to  installation 
permits:
  (a)  A person shall not install, or reinstall, a boiler without  holding  a 
proper license and first securing a permit from the boiler  division  of  the 
department.  The licensee applying for the permit shall ensure that work does 
not proceed until an approved permit has been secured.
  (b)  A person shall not install or replace welded pipe  without  holding  a 
proper license and first securing a permit from the boiler  division  of  the 
department.  The licensee applying for the permit shall ensure that work does 
not proceed until an approved permit has been secured.
  (c)  A person shall not install nonwelded pipe  without  holding  a  proper 
license.  A permit is not required.
  (2)  All of the following provisions apply to repair and alteration permits 
or reports:
  (a)  A person shall not alter or repair a boiler without holding  a  proper 
license and  first  securing  a  permit  from  the  boiler  division  of  the 
department.  The licensee applying for the permit shall ensure that work does 
not proceed until an approved permit has been secured, except as provided  by 
section 18 of the act.
  (b)  A person shall not repair or replace welded piping without  holding  a 
proper license and first securing a permit from the boiler  division  of  the 
department.  The licensee applying for the permit shall ensure that work does 
not proceed until an approved permit has been secured, except as provided for 
in section 18 of the act.
  (c)  A person shall not replace nonwelded piping without holding  a  proper 
license.  A permit is not required.
  (d)  A person shall not perform welded repairs to nonwelded piping  without 
holding a proper license and first securing a permit from the boiler division 
of the department.  The licensee applying for the permit  shall  ensure  that 
work does not proceed until an approved permit has been  secured,  except  as 
provided for in section 18 of the act.
  (e)  A licensee who makes welded repairs  to  boilers  or  boiler  external 
piping requiring the use of the national board "R" symbol stamp shall furnish 
the boiler division of the department, with 1 copy  of  the  approved  permit 
application, along with reports as required by the NBIC, upon  completion  of 
the work.
  (f)  A public utility or industrial plant that has been  granted  exemption 
under section 23 of the act that makes a welded repair to a boiler or  boiler 
external piping, as defined in section I of the ASME code, shall furnish  the 
boiler division of the department with a completed  repair  report  on  forms 
prescribed by the boiler division.
  (g)  A public  utility  or  industrial  plant  that  has  been  granted  an 
exemption under section  23  of  the  act  that  makes  a  welded  repair  to 
non-boiler external piping shall maintain records of the repairs and make the 
records available for review as required by the board of boiler rules.
  (3)  A permit is required for a change in use  of  an  existing  boiler  or 
replacement by mechanical methods, without welding, of sections in  sectional 
boilers; heat exchangers; feed water heater or economizer; and tube bundles.
A licensee replacing boiler components required by these  rules  to  be  code 
symbol stamped  and  national  board  registered  shall  provide  the  boiler 
division with the manufacturer's data reports.
  (4)  Any changes in the  scope  of  work  stated  on  the  original  permit 
application shall be submitted to the inspector for review and  approval  and 
reported to the boiler division.

  History:  1979 AC; 1981 AACS; 1995 AACS; 1998-2000 AACS;  2002  AACS;  2006 
AACS; 2009 MR 10, Eff. July 27, 2009.


R 408.4035   Permits; issuance to licensed persons only.
  Rule 35. Permits shall be issued only to persons licensed  as  required  by 
the act and  these  rules.  Work  shall  be  performed  by   or   under   the 
supervision of a licensed person.

  History:  1979 AC; 1995 AACS.


R 408.4036   Multiple contractors.
  Rule 36. Each contractor performing separate work  on   the   same   boiler 
installation shall possess a valid boiler installer's   license   and   shall 
obtain a permit to install for that part of  the  installation   he   is   to 
perform.

  History:  1979 AC.

R 408.4038  Fees.
  Rule 38.  (1)  Fees for licenses, boiler operator and  stationary  engineer 
registration; permits, certificates, and inspections are as follows:

 Licenses Installer license $80.00.
Installer exam $100.00.
Installer renewal $80.00.
Repairer license $80.00.
Repairer exam $100.00.
Repairer renewal $80.00.
Inspector license $80.00.
Inspector exam $100.00.
Inspector renewal $50.00.
Boiler operator registration $80.00.
Boiler operator examination $100.00.
Boiler operator registration renewal $80.00.
Stationary engineer registration $80.00.
Stationary engineer written examination $100.00.
Stationary engineer registration renewal $80.00.
3rd class stationary engineer oral examination $150.00.
2nd class stationary engineer oral examination $200.00.
1st class stationary engineer oral examination $250.00.

Examination fees are nonrefundable.

 Permit applications Nuclear installation permit application $1,380.00.
Nuclear repair permit application $400.00.
Low-pressure installation permit application $75.00.
High pressure installation permit  application   $120.00  +.05  per  foot  of 
piping.
Repair permit application $75.00.

Permit application fees are nonrefundable.

 Certificates Certificates $60.00.

 Inspections

Power boilers-150 square feet or less $70.00.
Power boilers-more than 150 square feet to 4,000 square feet $165.00.
Power boilers-more than 4,000 square feet to 10,000 square feet $180.00.
Power boilers-more than 10,000 square feet $205.00.
Low-pressure heating boiler without manhole $70.00.
Inspection of an additional low-pressure heating boiler without
  a manhole at the same physical location, on the same date $60.00.
Low-pressure heating boiler with manhole $85.00.
Low-pressure hot water supply boiler $60.00.
Inspection of an additional low-pressure hot water supply boiler
  at the same physical location, on the same date $45.00.
Low-pressure process boiler without manhole $70.00.
Low-pressure process boiler with manhole $85.00.
Miniature hobby locomotive boiler $15.00.

Special inspections

(2)  The boiler division shall  provide  special  inspections  not  otherwise 
covered in the fee schedule.  The charge for this service  shall  be  at  the 
rate of $100.00 for the first hour and $100.00 for each additional hour, plus 
lodging, meals, transportation,  and  other  related  expenses  incurred  for 
performing special inspections.
(3)  Fees required under these rules shall be paid by cash, money  order,  or 
check to the department.  Money orders or checks shall be  made  payable  to:
"State of Michigan."

  History:  1981 AACS; 1991 AACS; 1998-2000 AACS; 2001 AACS; 2002 AACS;  2007 
AACS; 2009 MR 10, Eff. July 27, 2009.


R 408.4039   Permits to alter boiler, piping, or vessel.
  Rule 39.  (1)  The boiler division of the department may issue   a   permit 
to alter a  boiler,  piping,  or  vessel  subject  to  these  rules  only  to
 a Michigan-licensed boiler  repairer  who  possesses  a  valid   certificate 
of authorization  from  the  national  board  of    boiler    and    pressure 
vessel inspectors for alterations or the ASME boiler and   pressure    vessel 
committee to build the type of boiler, piping, or  vessel  being  altered.
Drawings  and calculations covering all details of  the  proposed  alteration 
shall  accompany the application for a permit to alter.
  (2)  The licensed repairer shall perform the alteration    in    accordance 
with the NBIC.
  (3) The licensed repairer who makes the alteration shall prepare  a  report 
on forms prescribed by the boiler  division   of   the    department.     The 
licensed repairer shall furnish an original and 2 copies of the   report   to 
the  boiler division of the department, and upon request, 1  copy   of    the 
report  to  the boiler owner and user.  The  report  shall  clearly  indicate 
what  changes  have been made to the original construction.  The report shall 
show, in the spaces provided, the manufacturer's serial number of the boiler, 
the national  board number, if  assigned,  and  the  Michigan  serial  number 
assigned.
  (4)  The licensed repairer who makes the  alteration  shall   prepare   and 
attach a nameplate that complies with the requirements of the NBIC.

  History:  1979 AC; 1981 AACS; 1995 AACS; 1998-2000 AACS; 2006 AACS.


R 408.4045   Registration of boilers.
  Rule 45.  (1)  Within 6 months from the effective date of   these    rules, 
all owners or users of boilers and their  installations  now  in    use    or 
installed ready for use in the state shall report  to  the  chief   inspector 
on  forms prescribed by the department, giving the location, type,  capacity, 
age,  and date of installation.
  (2)  Before transfer of ownership of a boiler is  complete,   the   current 
owner  shall  assure  all  invoices  for   inspection    certificates     and 
inspections  for services rendered under  his  or  her  ownership  are   paid 
in  full.   Upon completion of transfer of ownership,  the  new  owner  of  a 
boiler  shall  notify the boiler division of  the  department  of  change  in 
ownership of a  boiler  or change in ownership of a location where  a  boiler 
is installed.  Upon  written notification, a new  certificate  of  inspection 
shall be issued in the name  of the new owner.
  (3)  A boiler  owner  or  user  shall  notify  the  boiler   division    of 
the department  immediately  when  his  or  her  boiler  insurance  has  been 
discontinued.

  History:  1979 AC; 2006 AACS.


R 408.4047  Exempt boilers.
  Rule 47.  These rules do not apply to any of the following:
  (a)  A boiler under federal control.
  (b)  A swimming pool heater, open car wash heater,  and  similar  types  of 
equipment which do not have intervening valves on  the  return  or  discharge 
piping, which do not have a reduction in pipe size in the return or discharge 
piping, and which do not generate more than normal circulating pump pressure.
  (c)  A miniature steam or marine engine used for a hobby.
  (d)  A boiler used in the power plant of a self-propelled vehicle  designed 
primarily for transportation of persons or property on a highway, except  for 
a vehicle used exclusively on stationary rails or tracks.
  (e)  A boiler used on a mint farm for mint processing purposes.
  (f)  A nonvaporizing, organic fluid boiler if the boiler meets all  of  the 
following criteria:
  (i)  The system is vented and does not have valves or restrictions  in  the 
pipe between the boiler and the vent.
  (ii)  The vent pipe is sized so that the thermal  expansion  of  the  fluid 
will not result in an increase in pressure on the system, which is verifiable 
with engineering data.
  (iii)  The owner or user provides the boiler  division  of  the  department 
with calculations performed by an engineer, which verify that pressure due to 
thermal expansion cannot exist in the boiler as installed.
  (g)  A low-pressure steam boiler that has a volume of  less  than  5  cubic 
feet and that does not have piped feed connections.
  (h)  A water tube or coil type hot water heating  boiler  requiring  forced 
circulation not exceeding any 1 of the following:
  (i)  Maximum water temperature of 200 degrees Fahrenheit.
  (ii)  Relief valve set pressure of 30 psi.
  (iii)  Heat input of 200,000 BTU/hr.
Exception.  Modular or  multiple  boiler  installations  exceeding  1,000,000 
BTU/hr input are not exempt.

  History:  1979 AC; 1998-2000 AACS; 2006 AACS; 2009 MR  10,  Eff.  July  27, 
2009.


R 408.4049   Boilers subject to inspection.
  Rule 49. Each boiler used or proposed to be used within this state shall be 
thoroughly  inspected   as   to   its   construction,   installation,     and 
condition.

  History:  1979 AC; 1981 AACS.


R 408.4051   Inspection of certain boilers required.
  Rule 51. Upon completion of  the  installation,  all   boilers   shall   be 
inspected by the chief inspector or a deputy inspector.

  History:  1979 AC; 1981 AACS.


R 408.4052   Rescinded.

  History:  1979 AC; 1995 AACS; 2002 AACS.


R 408.4055   Right of access.
  Rule 55.  The director, chief inspector, or any deputy inspector shall have 
free access, during reasonable hours, to any premises in the  state  where  a 
boiler is being constructed, installed, repaired, operated, or connected  and 
ready for use for the purpose  of  ascertaining  whether  the  boiler  is  in 
accordance with the act.

  History:  1979 AC; 1998-2000.


R 408.4057  Boiler inspection.
  Rule 57.  (1)  Once a boiler has been inspected  by  the  chief  or  deputy 
inspector and the boiler  and  its  installation  approved,  all  certificate 
inspections shall be conducted in accordance with the NBIC and these rules by 
an inspector who is properly licensed to inspect boilers  in  this  state  in 
accordance with the following provisions:
  (a)  A power boiler, process  boiler,  or  high-pressure,  high-temperature 
water boiler shall receive a certificate inspection annually and  shall  also 
be externally inspected annually, while under pressure, within 6 months  from 
the date of the internal inspection.
  (b)   A  low-pressure  steam  or  vapor  heating  boiler  shall  receive  a 
certificate inspection biennially.
  (c)  Hot water heating  and  hot  water  supply  boilers  shall  receive  a 
certificate inspection  triennially,  with  an  internal  inspection  at  the 
discretion of the inspector.
  (d)  A nonvaporizing, organic fluid boiler that is not exempt  under  these 
rules shall receive an external certificate inspection triennially.
  (e)  A miniature  hobby  locomotive  boiler  shall  receive  a  certificate 
inspection annually.
  (f)   A  grace  period  of  2  months  beyond  the  periods  specified   in 
subdivisions (a) to  (e)  of  this  subrule  may  lapse  between  certificate 
inspections, and the board may  permit  longer  periods  between  certificate 
inspections.
  (g)  Internal inspection of cast boilers shall be at the discretion of  the 
inspector.
  (2)   The  certificate  inspection  shall  be  an  internal  inspection  if 
construction  allows,  otherwise  the  certificate  inspection  shall  be  as 
complete an inspection as possible unless specified otherwise under this rule.
  (3)  The chief inspector, deputy inspector, or a special inspector provided 
for in the act shall make the inspections specified in this rule.
  (4)  If, at  the  discretion  of  the  inspector,  a  hydrostatic  test  is 
necessary, the boiler owner or user shall ensure that the test  is  performed 
in the presence of the inspector.

  History:  1979 AC; 1981 AACS; 1985 AACS; 1995 AACS;  1998-2000  AACS;  2002 
AACS; 2006 AACS; 2009 MR 10, Eff. July 27, 2009.


R 408.4058  Extension of internal inspection certificate to 24 months.
  Rule 58.  (1)  An internal boiler  inspection  may  be  increased  from  an 
annual inspection to a 24-month inspection frequency by approval of the board 
of boiler rules.  An employee delegated by the utility or industrial facility 
shall apply for the extension.  The following information shall be  addressed 
by plant orders, procedures, or policies:
  (a)  Operator training.
  (b)  Boiler maintenance.
  (c)  Water chemistry.
  (d)  Operating parameters.
  (e)  Chemical cleaning schedule.
  (f)  Protective devices.
  (g)  Boiler external inspection.
  (h)  Testing of pressure relief  valves  in  accordance  with  the  NBIC.
Repairs shall be conducted by the valve manufacturer or a "VR" stamp holder.
The information may be contained in 1  document  or  several  if  1  document 
contains  references  to  all  other  documents   addressing   the   required 
information.
  (2)  The plant owner shall establish a  review  committee.   The  inspector 
shall be a member of the committee.  The  purpose  of  the  committee  is  to 
determine the acceptability of a boiler to  operate  safely  for  a  24-month 
period.  The committee shall  have  access  to  and  review  all  information 
pertaining to the past operation, maintenance, and repair of the boiler.  The 
review committee meeting shall be conducted within 30 days after the internal 
inspection.  The committee may decrease the period of  time  the  boiler  may 
operate, but shall not extend  the  period  beyond  24  months.   The  signed 
summary report of the review committee meeting  shall  be  submitted  to  the 
boiler division of  the  department.   The  grace  period  provided  under  R 
408.4057 does not apply to this rule.  The inspector shall indicate the  next 
inspection due date on his or her inspection report to the boiler division of 
the department.
  (3)  Utilities or industrial facilities with a prescheduled boiler internal 
certificate inspection period shall communicate with the boiler division  the 
date when the boiler is removed from service.  The boiler internal inspection 
may occur at any time during the outage period.  The next 24-month  operating 
period shall be calculated based on the date of  the  certificate  inspection 
conducted during this period.
  (4)  An external inspection of the boiler shall be  conducted  while  under 
pressure, within 12 months of the certificate inspection.

  History:  1979 AC; 2002 AACS; 2006 AACS; 2009 MR 10, Eff. July 27, 2009.


R 408.4059   Notification for inspection.
  Rule 59.  The  owner  or  user  shall  prepare  each  boiler  for  internal 
inspection in accordance with the NBIC and these rules and shall prepare  for 
and apply a hydrostatic  pressure  test,  whenever  necessary,  on  the  date 
specified  by  the chief inspector, deputy inspector, or special inspector.

  History: 2002 AACS; 2006 AACS.


R 408.4065   Examinations for inspector licenses; place and time.
  Rule 65.  Examinations for boiler  inspector  licenses   and   certificates 
of competency shall be held at a location selected by the boiler division  of 
the department, 4 times each year, on the first Wednesday and   Thursday   in 
March, June, September, and December.

  History:  1979 AC; 2006 AACS.


R 408.4067   Qualification of applicants for a boiler inspector  license.
  Rule 67. An applicant for examination for  a   boiler   inspector   license 
shall have had not less than 3 years' practical experience  in  the   design, 
construction,  or  operation  of  high  pressure   boilers,   as   mechanical 
engineer, steam engineer, or boilermaker or shall have had not  less  than  3 
years' inspection experience as an inspector of high  pressure   boilers.   A 
credit of 2 years of the required experience shall be  given  to   applicants 
holding an engineering degree from an accredited college  of  engineering.

  History:  1979 AC.


R 408.4069   Examination; contents of applications.
  Rule 69. Application for an examination for a  certificate  of   competency 
shall be in writing upon a form to be furnished by   the   director   stating 
the school education of the applicant, a list of his employers, his period of 
employment  and  position   held   with   each   employer.   An   application 
containing a  willful  falsification  or  untruthful   statement   shall   be 
rejected.

  History:  1979 AC.


R 408.4071   Examination; contents.
  Rule 71. If an examination applicant's history and  experience   meet   the 
requirements of R  408.4067,  the  applicant  shall  be   given   a   written 
examination dealing  with  the  design,   construction,   installation,   and 
repair of boilers and their appurtenances. The applicant shall be accepted or 
rejected on  the  merits  of   the   examination.   If   the   applicant   is 
successful in meeting  the  requirements  of  the  board,   a   license   and 
certificate of competency will be issued by the director.  An  applicant  who 
fails to pass  the  examination  may  appeal  to  the   board   for   another 
examination, which shall be given by the board within 90 days. The  record of 
the applicant's examination shall be accessible to  the  applicant   and  his 
or her employer.

  History:  1979 AC; 1995 AACS.


R 408.4073   Examination fee for boiler inspector's license.
  Rule 73.  A fee prescribed by  R  408.4038  shall  be  charged   for   each 
applicant taking the examination for boiler  inspector's  license  and  shall 
accompany the application filed with the department.  The fee  entitles   the 
applicant  to take the examination twice if  necessary.   An  additional  fee 
prescribed  by  R 408.4038 shall accompany each subsequent application.

  History:  1979 AC; 1981 AACS; 2002 AACS; 2006 AACS.


R 408.4075   Special inspector's license.
  Rule 75. The director, upon the  request  of  a   company   authorized   to 
insure against loss from accident of boilers in this state or  a  city   that 
has an  authorized  boiler  inspection  department,  shall   issue,   to   an 
inspector of the company or the city, a license as a  special  inspector   if 
the inspector, before receiving his or her  license,  satisfactorily   passes 
the  examination  provided  for  in  R  408.4071  or,  in   place   of    the 
examination, holds  a  license  or  a  certificate  of   competency   as   an 
inspector of boilers for a  state  that  has  a   standard   of   examination 
substantially equal to that of this state or  holds  a   commission   as   an 
inspector of boilers issued by the national board of  boiler   and   pressure 
vessel inspectors. Each inspector shall present himself or  herself   for   a 
review of Michigan boiler law and rules conducted by  the   chief   inspector 
before a license is issued.

  History:  1979 AC; 1995 AACS.


R 408.4077   Rescinded.

  History:  1979 AC; 1981 AACS; 2002 AACS.


R 408.4079   Annual renewal of license.
  Rule 79. Each license issued to a special inspector shall  be  renewed   at 
the beginning of each calendar year following the date   of   issuance,   and 
shall be accompanied by a fee as prescribed by R 408.4038.

  History:  1979 AC; 1981 AACS.


R 408.4081   Special inspector employed by insurance company.
  Rule 81. A special inspector's license issued to  an   inspector   in   the 
employ of an insurance  company  shall  be  held  at  the   office   of   the 
employing company. The  license  and  the  identification   card   shall   be 
returned to the chief inspector when the special  inspector   to   whom   the 
license and identification card were issued is no longer  in  the   company's 
employ or at the request of the chief inspector, as specified  by  section 14 
of the act.

  History:  1979 AC; 1995 AACS.


R 408.4087  Reporting unregistered boilers.
  Rule 87.  (1)  If a special inspector  visits  a  location  to  conduct  an 
inspection as required by these rules,  then  he  or  she  shall  report  the 
location of all boilers that are not  registered.  The  report  shall  be  in 
addition to the report pertaining to the inspection of registered boilers and 
their installation.  The chief inspector shall assign a deputy  inspector  to 
visit the location to inspect all unregistered boilers and affix  a  Michigan 
serial number.
  (2)  If an inspector makes an inspection of a boiler that does not  bear  a 
Michigan serial number, then the inspector shall attempt  to  verify  whether 
the boiler is unregistered or is missing  the  serial  number  tag.   If  the 
inspector is unable to determine that the boiler is registered,  then  he  or 
she shall report it as prescribed in subrule (1) of this rule.

  History:  1979 AC; 1995 AACS; 2002 AACS; 2009 MR 10, Eff. July 27, 2009.


R 408.4089   Boiler installers' licenses.
  Rule 89. Boiler installers shall be licensed as required by  section  13 of 
the act.

  History:  1979 AC.


R 408.4091   Application for boiler installer's license.
  Rule 91.  (1)  An application for a boiler installer's license shall be  on 
a form provided by the boiler division of the  department.    The   applicant 
shall state the name of the business, firm,  partnership,   or    corporation 
that  the applicant intends to represent in the  business    of    installing 
boilers  and shall provide evidence of his or her past  experience   in   the 
installation  of boilers  and  evidence  of  his  or  her   workmanship   and 
engineering  skills  that would qualify the  applicant  for  examination  and 
licensing.
  (2)  An applicant for a boiler installer's license shall have not less than 
5 years of experience in all phases of boiler  installation  in   the   class 
of license for which the  applicant  is  applying.   A  credit  of  2   years 
of experience towards the 5 years of experience may be  given  for  2   years 
of experience in the design,  construction,  manufacture,  or  inspection  of 
boilers.
  (3)  The boiler division  of  the  department  may   verify   installations 
required to be reported on  the  application  to  establish  the  applicant's
 minimum practical  installation  experience  in  the  applicant's   desired
 license classification.

  History:  1979 AC; 1981 AACS; 1995 AACS; 2002 AACS; 2006 AACS.


R 408.4093   Rescinded.

  History:  1979 AC; 1995 AACS; 2002 AACS.


R 408.4096   Filing of welding procedures.
  Rule  96.   (1)   If  welding  is  employed  in   the   installation     or 
reinstallation of a boiler or  piping,  then  the  licensed  installer  shall
 file  welding  procedure  specifications  and  the  procedure  qualification 
reports qualified in accordance with the requirements of  ASME  code  section 
IX, welding and brazing qualifications,  with  the  boiler  division  of  the 
department, before conducting any installation requiring welding.
  (2)  A licensed  installer  who  utilizes  welding  in   the   installation 
or reinstallation  of  boilers  or  piping  shall  have  available,  for  the 
inspector's review, welding procedure specifications and  welder  performance 
qualification records to be used or that were used  in  the  installation  or 
reinstallation.

  History:  1998-2000 AACS; 2006 AACS.


R 408.4099   Identification   of   applicant's    business    affiliation for 
installer's license.
  Rule 99.  (1)  An applicant for a boiler installer's  license  shall  state 
the name of the business, firm, partnership, or corporation under which he or 
she intends to carry on the business of installing boilers before  a  license 
will be issued.  The applicant may be the owner, a partner, an officer  of  a 
corporation, or a supervisory employee of the business, firm, partnership, or 
corporation legally registered with the state.
  (2)  A person shall not engage in installing boilers under the name of more 
than 1 business at any one time.
  (3)  When required by the ASME code, a licensee shall be in the  employ  of 
an organization in possession of the appropriate certificate of authorization.

  History:  1979 AC; 1995 AACS; 2002 AACS.


R 408.4101   Installer's license not required.
  Rule 101.  An individual employed by, and working under the supervision of, 
a licensed boiler installer is not required to be licensed.

  History:  1979 AC; 2002 AACS.


R 408.4103  Examination for boiler installer's license.
Rule 103.  (1)  An applicant  for  a  boiler  installer's  license  shall  be 
required to take an examination approved by the board of boiler  rules.   The 
examination will be held quarterly at a location  determined  by  the  boiler 
division of the  department.   A  score  of  70%  is  required  to  pass  the 
examination.  A passing score on the examination is valid for 3 years.  If  a 
license is not applied for in that time, then an applicant shall file  a  new 
application for examination.
(2)   A  licensee  wishing  to  upgrade  his  or  her  license  to  a  higher 
classification shall maintain his or her current license in good standing for 
a minimum of 1 year and take the examination prescribed  in  subrule  (1)  of 
this rule.  A licensee may only upgrade a license 1 classification at a time.

  History:  1979 AC; 1995 AACS; 2002 AACS; 2006 AACS.


R 408.4105   Fee for boiler installer's license.
  Rule  105.  The  fee  prescribed  by  R 408.4038   shall   accompany    the 
application for a boiler installer's license.

  History:  1979 AC; 1981 AACS.


R 408.4107  Annual renewal of boiler installer's license; change of  business 
affiliation.
  Rule 107.  (1)  A boiler installer's license shall be renewed annually upon 
payment of a fee as prescribed by R 408.4038.
  (2)  An installer's license shall expire on December 31 of  each  year  and 
shall be renewed.  An application for  renewal  shall  be  submitted  to  the 
boiler division of the department between September 30 and  December  31.   A 
license that is not  renewed  by  January  1  shall  be  voided  and  may  be 
reinstated only upon application for reinstatement and payment  of  both  the 
renewal fee and a reinstatement fee of $80.00.  A person  requesting  renewal 
of a license within 3 years after the license  is  voided  pursuant  to  this 
subrule is not subject to reexamination for the license, but shall  pay  both 
the reinstatement fee and the annual license  renewal  fee  for  the  current 
renewal year.  A person who fails to renew a license for 3 consecutive  years 
shall meet the requirements of, and take an examination  for,  the  class  of 
license sought.
  (3)  A licensee who changes business affiliation  shall  notify  the  chief 
inspector, on a form provided by the boiler division of  the  department,  of 
the name and address of the new business affiliate under which  the  licensee 
intends to use his or her license.  A  fee  of  $25.00  shall  accompany  the 
notification form.

  History:  1979 AC; 1981 AACS; 1995 AACS; 2002 AACS; 2006 AACS; 2007 AACS.


R 408.4109  Classes of boiler installer's licenses.
  Rule 109.  (1)  A class  1B  installer's  license  qualifies  a  person  to 
install a low-pressure boiler that does not exceed a firing rate of 1,000,000 
BTU per hour as certified  by  the  boiler  manufacturer.   For  a  class  1B 
license, the sum of all modules in a modular boiler shall not exceed a firing 
rate of 1,000,000 BTU per hour as certified by the boiler manufacturer.
  (2)  A class 2B installer's license qualifies a person to  do  all  of  the 
following:
  (a)  Install a low-pressure boiler of any capacity or firing rate.
  (b)  To perform work covered by a class 1B license.
  (3)  A class 3B installer's license qualifies a person to  do  all  of  the 
following:
  (a)  Install a power boiler that has a capacity  of  not  more  than  5,000 
pounds of steam per hour.
  (b)  Install or replace non-boiler external piping as defined by ASME  code 
B31.1 and R 408.4032.
  (c)  Perform work covered by a class 2B license.
  (4)  A class 4B installer's license qualifies a person to  do  all  of  the 
following:
  (a)  Install a boiler that has a capacity of not more than  300,000  pounds 
of steam per hour.
  (b)  Install or replace non-boiler external piping as defined by ASME  code 
B31.1 and R 408.4032.
  (c)  Perform work covered by a class 3B license.
  (5)  A class 5B installer's license qualifies a person to  do  all  of  the 
following:
  (a)  Install a boiler of  any  capacity  or  firing  rate.   Exception:   a 
nuclear heat source boiler.
  (b)  Install or replace non-boiler external piping as defined by ASME  code 
B31.1 and R 408.4032.
  (c)  Perform work covered by a class 4B license.
  (6)  A class 6B installer's license qualifies a person to install a  boiler 
that utilizes a nuclear heat source or its parts,  appurtenances,  or  system 
components.  Before a license is issued, an applicant for a class 6B  license 
shall submit evidence of both of the following:
  (a)  Familiarity with and knowledge of all federal  rules  and  regulations 
regarding the installation of a boiler that has a nuclear heat source.
  (b)  Employment by a company in possession of a  valid  ASME  nuclear  code 
symbol applicable to the portions of  any  nuclear  boiler  system  that  the 
company proposes to install.
  (7)  A class P license qualifies a person to install or replace  non-boiler 
external piping or repair non-boiler external piping as defined by ASME  code 
B31.1 and R 408.4032.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS; 2002 AACS; 2009 MR  10,  Eff.
July 27, 2009.


R 408.4111   Boiler installer's installation responsibility.
  Rule 111.  All boiler installations shall be made in  accordance  with  the 
American society of mechanical engineers boiler code, and in accordance  with 
these rules.  Any deviation from these requirements is cause  for  suspension 
or revocation of the boiler installer's license.

  History:  1979 AC; 2002 AACS.


R 408.4114  Inspection of components and systems in a nuclear power plant.
  Rule 114.  (1)  Preservice (baseline)  inspection,  in-service  inspection, 
repair, replacement, modification, alteration, examination, testing, records, 
and reports of individual nuclear components, parts,  appurtenances,  piping, 
supports, nuclear  systems,  applicable  associated  auxiliary  systems,  and 
complete nuclear power  plants  that  are  in  compliance  with  all  of  the 
requirements of the construction code, at the point in time the  requirements 
have been completed, irrespective of  the  physical  location,  shall  be  as 
prescribed in section XI, rules for in-service inspection  of  nuclear  power 
plant components, of the ASME boiler and pressure vessel code.  A copy of the 
current edition of section XI is available for  inspection  at  the  Michigan 
Department of Energy, Labor & Economic Growth, Bureau of Construction  Codes, 
6546 Mercantile Way, Lansing, Michigan 48911 or from the ASME  International, 
22 Law Drive, Fairfield, New Jersey 07007, at  a  cost  as  of  the  time  of 
adoption of these amendatory rules of $610.00.
  (2)  The owner of a nuclear power plant shall  file  inspection  plans  and 
schedules, pump and valve testing programs,  and  requests  for  relief  from 
section XI of the ASME code requirements with  the  boiler  division  of  the 
department.
  (3)  The nuclear power plant shall maintain compliance  with  requirements, 
as prescribed by the nuclear regulatory commission.

  History:  1979 AC; 1985 AACS; 1995 AACS; 1998-2000 AACS; 2006 AACS; 2009 MR 
10, Eff. July 27, 2009.


R 408.4115   Rescinded.

  History:  1979 AC; 2002 AACS.


R 408.4116   Rescinded.

  History:  1979 AC; 1981 AACS; 2002 AACS.


R 408.4117   Boiler repairers; licenses.
  Rule 117. Boiler repairers shall be licensed as required by  section  13 of 
the act.

  History:  1979 AC.


R 408.4119   Application for boiler repairer's licenses.
  Rule 119.  (1)  An application for a boiler repairer's license shall be  on 
a form provided by the boiler division of the  department.    The   applicant 
shall state the name of the business, firm,  partnership,   or    corporation 
that  the applicant intends to represent in the business of repairing boilers 
and shall give evidence of his or her past experience in  the    repair    of 
boilers  and evidence of his or her workmanship and engineering  skills  that 
would  qualify the applicant for examination and licensing.
  (2)  An applicant for a boiler repairer's license shall  have  at  least  5 
years of experience in all phases of  boiler  repair  in   the    class    of 
license  for which the applicant is applying.  A  credit  of  3   years    of 
experience  towards the 5 years of experience will be given for 3  years   of 
experience  in  the  design,  construction,  manufacture,  or  inspection  of 
boilers.
  (3)  The boiler division of the department may verify repairs  required  to 
be reported on the  application  to  establish  the    applicant's    minimum 
practical   repair   experience   in   the   applicant's   desired    license 
classification.   Copies of the boiler division  inspection  reports  of  the 
repairs shall be  made  part of the application.

  History:  1979 AC; 1981 AACS; 1995 AACS; 2002 AACS; 2006 AACS.


R 408.4120   Filing of welding procedures.
  Rule 120.  (1)  If  welding  is  employed  in  the   repair,   replacement, 
or alteration of a boiler or piping,  then  the  licensed   repairer    shall 
file welding  procedure  specifications   and     procedure     qualification 
reports qualified in accordance with  ASME  code  section  IX,  welding   and 
brazing qualifications, with the boiler division of  the  department,  before 
conducting any welding.
  (2)  A licensed repairer who utilizes welding in the  repair,  replacement, 
or alteration of  boilers  or  piping  shall  have   available,    for    the 
inspector's review, welding procedure specifications and  welder  performance 
qualification records at the work site or other mutually agreed upon location.

  History: 2006 AACS.


R 408.4121   Examination  for  boiler  repairer's   license;   establishment; 
administration;  nuclear   repairer   license   applicant;   certificate   of 
authorization; examination.
  Rule 121.  (1)  The examination shall  be  held  quarterly  at  a  location 
determined by the boiler division of the department.
  (2)  An applicant wishing to  upgrade  his  or  her  license  to  a  higher 
classification shall take the examination prescribed in subrule (1)  of  this 
rule.
  (3)  The director, upon the request of a company in possession of  a  valid 
ASME "N" type certificate of authorization or the national  board  of  boiler 
and pressure vessel  inspectors  "NR"  certificate  of  authorization,  shall 
issue, to an individual of the company, a license as a  nuclear  repairer  if 
the individual, before receiving his or her  license,  satisfactorily  passes 
the examination prescribed in subrule (1) of this rule.

  History:  1979 AC; 1985 AACS; 1995 AACS; 2002 AACS; 2006 AACS; 2009 MR  10, 
Eff. July 27, 2009.


R 408.4122   Identification  of  applicant's   business    affiliation    for 
repairer's license.
  Rule 122.  (1)  An applicant for a boiler repairer's  license  shall  state 
the name of the business, firm, partnership, or corporation under which he or 
she intends to carry on the business of repairing boilers  before  a  license 
will be issued.  The applicant may be the owner, a partner, an officer  of  a 
corporation, or a supervisory employee of the business, firm, partnership, or 
corporation legally registered with the state.
  (2)  A person shall not engage in repairing boilers under the name of  more 
than 1 business at any one time.

  History: 2002 AACS.


R 408.4123   Boiler repairer's license application fee.
  Rule 123.  The  fee  prescribed  by  R  408.4038   shall   accompany   each 
application for boiler repairer's license.

  History:  1979 AC; 1981 AACS.


R 408.4124   Repairer's license not required.
  Rule 124.  An individual employed by, and working under the supervision of, 
a licensed boiler repairer is not required to be licensed.

  History: 2002 AACS.


R 408.4125  Annual renewal of boiler repairer's license; change  of  business 
affiliation.
  Rule 125.  (1)  A boiler repairer's license shall be renewed annually  upon 
payment of a fee as prescribed by R 408.4038.
  (2)  A repairer's license shall expire on December  31  of  each  year  and 
shall be renewed.  An application for  renewal  shall  be  submitted  to  the 
boiler division of the department between September 30 and  December  31.   A 
license that is not  renewed  by  January  1  shall  be  voided  and  may  be 
reinstated only upon application for reinstatement and payment  of  both  the 
renewal fee and a reinstatement fee of $80.00.  A person  requesting  renewal 
of a license within 3 years after the license  is  voided  pursuant  to  this 
subrule is not subject to reexamination for the license, but shall  pay  both 
the reinstatement fee and the annual license  renewal  fee  for  the  current 
renewal year.  A person who fails to renew a license for 3 consecutive  years 
shall meet the requirements of, and take an examination  for,  the  class  of 
license sought.
  (3)  A licensee who changes business affiliation  shall  notify  the  chief 
inspector, on a form provided by the boiler division of  the  department,  of 
the name and address of the new business affiliate under which  the  licensee 
intends to use his or her license.  A  fee  of  $25.00  shall  accompany  the 
notification form.

  History:  1979 AC; 1981 AACS; 1995 AACS; 2002 AACS; 2006 AACS; 2007 AACS.


R 408.4127  Boiler repairers; classes of licenses.
  Rule 127.  (1)  A class I license allows a licensee to repair a  boiler  by 
means other than welding, riveting, or other fabrication process.
  (2)  A class II license allows a licensee to do both of the following:
  (a) Repair a low-pressure boiler, a hot water supply  boiler,  and  a  fire 
tube boiler of any pressure.
  (b)  Perform work covered by a class I license.
  (3)  A class III license allows a licensee to do all of the following:
  (a)  Repair a high-pressure boiler.
  (b)  Repair or replace non-boiler external piping, as defined by ASME  code 
B31.1 and R 408.4032.
  (c)  Perform work covered by a class II license.
  (4)  A class IV license allows a licensee to do all of the following:
  (a)  Repair or field-erect a boiler of any pressure.  Exception:  a  boiler 
that has a nuclear heat source.
  (b)  Repair or replace non-boiler external piping as defined by  ASME  code 
B31.1 and R 408.4032.
  (5)  A class V license allows a licensee to erect and repair a boiler  that 
has a nuclear heat source or its parts, appurtenances, or system  components, 
and also provides the following:
  (a)  The licensee may repair or  replace  non-boiler  external  piping,  as 
defined by ASME code B31.1 and R 408.4032.
  (b)  Before a license is issued, an applicant for a class V  license  shall 
submit evidence of the following:
  (i)  Familiarity with and knowledge of all federal  rules  and  regulations 
regarding the construction of a boiler that has a nuclear heat source.
  (ii)  Employment by a company in possession of a valid ASME  N-type  symbol 
stamp applicable to the portions of any  nuclear  boiler  system  he  or  she 
proposes to repair.
  (6)  A class P license qualifies a person to install or  repair  non-boiler 
external piping as defined by ASME code B31.1 and R 408.4032.
  (7)  A licensed boiler repairer shall secure a permit for a change  in  use 
of an existing boiler or replacement by mechanical methods, without  welding, 
of sections in sectional boilers,  heat  exchangers,  feed  water  heater  or 
economizer, and tube bundles in accordance with R 408.4033.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS; 2006 AACS; 2009 MR  10,  Eff.
July 27, 2009.


R 408.4129   Boiler repairer's repair responsibility.
  Rule 129.  It is the responsibility of a licensed boiler repairer  to  make 
all boiler repairs in  accordance  with  these  rules  and  arrange  for  the 
required inspections with an inspector before work is started.  Any deviation 
from these requirements is cause for suspension or revocation of  the  boiler 
repairer's license.

  History:  1979 AC; 1995 AACS; 2002 AACS.


R 408.4131   Examination of persons with revoked licenses.
  Rule 131. The board shall require examination or   reexamination   of   any 
licensee whose license has been revoked for cause.

  History:  1979 AC.


R 408.4133   Reports of inspection to be filed.
  Rule 133.  (1)  Each company employing licensed boiler  inspectors,  within 
30 days  following  each  boiler  certificate  inspection   made    by    the 
inspectors, shall file  a  report  of  the  inspection   with    the    chief 
inspector  upon appropriate forms  provided  by   the   boiler   division.
Reports  of  external inspections shall not  be  required  except  when  such 
inspections disclose   that  the  boiler  is   in   dangerous   condition.
Manufacturers  or  national  board numbers shall be reported on  all  reports 
of inspection.
  (2)  The inspector shall leave a  signed  and  dated   inspection   sticker 
or inspection report at the inspection location.
  (3)  The inspector shall record his or  her  national  board   of    boiler 
and pressure vessel commission number on the inspection report.

  History:  1979 AC; 2002 AACS; 2006 AACS.


R 408.4139   Rental boilers.
  Rule 139.  A rental boiler shall be inspected before it  is   rented    and 
the boiler  shall   be   approved   for    temporary    installation.      An 
inspection certificate for an approved rental boiler is valid for 12 months.
A licensed  boiler  installer  shall  secure  an  installation   permit    in 
accordance  with  R 408.4033 each time a rental boiler is reinstalled.    The 
permit  application for an installed rental boiler shall  be  posted  at  the 
rental boiler.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R 408.4143   Refusal of inspection or nonpayment of fee.
  Rule 143. If the owner or user of a  boiler  required   to   be   inspected 
refuses to allow an inspection to be  made  or  refuses  to   pay   the   fee 
prescribed by R 408.4038, the certificate of inspection shall be suspended by 
the chief inspector until the owner or user allows  the  inspection  or  pays 
the fee.

  History:  1979 AC; 1981 AACS.


R 408.4149   Notice of violation.
  Rule 149.   A  written  notice  of  violation  containing  the  corrections 
necessary shall be sent to, or served upon, the owner or user  by  the  chief 
inspector, deputy inspector, or special inspector advising  of  the  existing 
conditions and stating a time limit within which the correction ordered  must 
be completed.  The notice shall serve  as  a  notice  of  suspension  of  the 
certificate of inspection upon a failure to comply with a correction order by 
the compliance date.  When the notice of violation is issued as a  notice  of 
suspension of a certificate of inspection or as a rejection  or  condemnation 
of the boiler, a  copy  of  the  notice  shall  be  posted  adjacent  to  the 
inspection certificate.  The suspension of an  inspection  certificate  shall 
continue in effect until the boiler has been made to conform to  these  rules 
and until the certificate has been reinstated.  A fee  shall  be  charged  in 
accordance with R  408.4038  (2)  for  all  follow-up  visits  by  the  chief 
inspector or deputy inspector.

  History:  1979 AC; 1995 AACS; 2002 AACS.


R 408.4151   Defacing or removing certificate or numbers.
  Rule 151. No person except the chief inspector  or   a   deputy   inspector 
shall  deface  or  remove  any  certificate  of  inspection   or   mark    of 
identification number on a boiler.

  History:  1979 AC.


R 408.4153   Operation  of   boiler    under    pressure    without     valid 
certificate prohibited; penalty.
  Rule 153.  (1)  A person,  firm,  partnership,  or  corporation  shall  not 
operate a boiler under pressure in this state  to  which  these  rules  apply 
without a valid inspection  certificate  or  at  a  pressure  exceeding  that 
specified on the inspection certificate.
  (2)  An owner or user who causes a boiler to be operated without possessing 
a valid certificate  or  at  a  pressure  exceeding  that  specified  on  the 
inspection certificate is subject to the penalty prescribed in section 24  of 
the act.

  History:  1979 AC; 2002 AACS.


R 408.4155   Boiler policies; newly written, canceled, or suspended.
  Rule 155. All insurance  companies  shall  notify   the   chief   inspector 
within 30 days of all boilers newly insured,  canceled,   not   renewed,   or 
suspended because of unsafe conditions.

  History:  1979 AC.


R 408.4157   Notification; defective boilers.
  Rule 157. If a special inspector, upon the first  inspection   of   a   new 
risk, finds that the boiler or  any  of  the  appurtenances   are   in   such 
condition  that  his  company  refuses  insurance,    the    company    shall 
immediately notify the chief inspector and submit a report of the defects.

  History:  1979 AC.


R 408.4161   Defective conditions; external inspections.
  Rule 161. If, upon an external inspection, there is evidence of  a  leak or 
crack, enough of the covering of the boiler shall be removed to  satisfy  the 
inspector in order that he may determine the safety of the boiler;  or if the 
covering cannot be removed at that time, he may order the  operation  of  the 
boiler stopped until such time as the covering can be   removed   and  proper 
examination made.

  History:  1979 AC.


R 408.4163   Notification in case of accident that renders boiler inoperative.
  Rule 163.  (1)  If an accident occurs that renders  a  boiler  inoperative, 
then the owner or user shall  immediately  notify  the  chief   inspector.
For  a serious accident, notice shall be given immediately by  the   quickest 
method available, and neither the boiler nor any of  its  parts   shall    be 
removed  or disturbed before an inspection  has  been  made  by   the   chief 
inspector,  deputy inspector, or special inspector, unless the removal is  to 
save human life.  A condition or failure which results in bodily  injury   or 
physical  damage  to equipment or property other than the boiler  or    which 
creates  a  unique  or unusual  explosion  hazard  shall  be  reported  as  a 
serious accident.
  (2)  A detailed accident report shall be submitted  by  the   owner's    or 
user's insurance company boiler  inspector  on  an  accident   report    form 
furnished  by the boiler division of the department.   If  a  boiler  is  not 
insured,  a  state deputy boiler inspector shall submit the required report.

  History:  1979 AC; 1995 AACS; 2002 AACS; 2006 AACS.


R 408.4165   Restamping of boilers.
  Rule 165.  When  the  stamping  on  a  boiler   becomes   indistinct,   the 
inspector shall instruct the owner or user to have  it   restamped.   Request 
for permission to restamp the boiler shall be made to  the  chief   inspector 
and proof of the original stamping shall accompany the request  made  to  the 
chief inspector. Restamping authorized by the  chief   inspector   shall   be 
done only by an inspector,  and  shall  be  identical   with   the   original 
stamping, except that it will not be required to  restamp   the   ASME   code 
symbol. Notice of completion of such restamping shall be   filed   with   the 
chief inspector by the inspector who stamped the boiler,  together   with   a 
facsimile of the stamping applied.

  History:  1979 AC.


R 408.4167   Penalty for operation of unsafe boilers.
  Rule 167. If, upon inspection, a  boiler  is  found  to  be   in   such   a 
condition that it is unsafe to operate, the inspection  certificate  shall be 
suspended pursuant to  section  20(4)   of   the   act.   A   person,   firm, 
partnership, or corporation causing such a boiler to be  operated  shall   be 
subject to the penalty prescribed in section 24 of the act.

  History:  1979 AC.


R 408.4169   Condemned boilers.
  Rule 169. A boiler which has been inspected and declared  unsafe   by   the 
chief inspector, deputy inspector or special inspector and  which  the  owner 
has  determined  will  be  scrapped  shall  be  stamped   with    the    word 
"condemned". The stamping shall be as shown by the  following  facsimile  and 
shall be situated in  several  conspicuous  locations   determined   by   the 
inspector.
                                -CONDEMNED-

Any person, firm, partnership, or corporation using  or  offering for  sale a
 condemned  boiler  for  operation within this  state  shall  be  subject  to 
the penalties provided in section  24 of this act.

  History:  1979 AC; 1995 AACS.


R 408.4171  Removal of used boilers from the state.
  Rule 171.  (1)  If an ASME boiler located in this state is to be  moved  to 
another state for temporary use or repairs, application shall be made by  the 
owner to the chief inspector for permission to reinstall the boiler  in  this 
state as prescribed in R 408.4177.
  (2)  Repairs conducted outside of  this  state  to  boilers  that  will  be 
reinstalled in this state shall be conducted by an organization in possession 
of a valid certificate of authorization to repair boilers.  The  organization 
shall conduct the repair in accordance with the NBIC  and  submit  all  forms 
required by the NBIC.

  History:  1979 AC; 2009 MR 10, Eff. July 27, 2009.


R 408.4172   Nonstandard boilers; bringing into state.
  Rule 172. If a nonstandard boiler that  is  in  use  in   this   state   is 
removed outside the boundaries of the state, it cannot be  brought  into  the 
state and reinstalled without the permission of the board of boiler rules.

  History:  1979 AC; 1995 AACS.


R 408.4173   Rescinded.

  History:  1979 AC; 1995 AACS; 2002 AACS.


R 408.4175   Inspection of used and secondhand  boilers  for   reinstallation 
and operation.
  Rule 175.  The owner or user shall ensure  that  all  used  and  secondhand 
boilers are inspected by  the  chief  inspector  or  a  deputy  inspector  to 
determine compliance with these rules before approval  for  reinstallation.
The chief inspector or deputy inspector may require a  hydrostatic  test.   A 
used or secondhand  boiler  shall  not  be  placed  in  operation  until  its 
installation has been approved for operation by  the  chief  inspector  or  a 
deputy inspector.

  History:  1979 AC; 2002 AACS.


R 408.4177   Reinstallation of used or secondhand boilers; fees.
  Rule 177.  Reinstallation of a  used  or  secondhand  boiler   shall   only 
be performed by a licensed boiler installer.   A  permit  fee  prescribed  by
 R 408.4038 shall be paid directly to the boiler division of  the  department 
and shall accompany the permit to reinstall a used or secondhand boiler.

  History:  1979 AC; 1981 AACS; 2002 AACS; 2006 AACS.


R 408.4179   Reinstalled boilers; fittings and appurtenances.
  Rule 179.  The owner shall ensure that the installation  of  a  reinstalled 
boiler conforms to the requirements of R 408.4031.

  History:  1979 AC; 1995 AACS; 2002 AACS.


R 408.4182   Steam kettles.
  Rule 182.  (1)  A fired or electrically heated steam  kettle,  irrespective 
of size, that has piped feed connections shall be in  compliance  with  these 
rules.
  (2)  A fired or electrically heated kettle,  irrespective  of    size    or 
feed piping connections, shall be in compliance with  the   requirements   of 
these rules.  The owner  or  user  shall  report  the  installation  to   the 
chief inspector before the unit is operated.  The  chief   inspector    shall 
assign  a deputy inspector to visit the installation location to inspect  the 
kettle  to determine its safety for operation.  A kettle that is operated  at 
or below 15 psi shall be inspected biennially.  A kettle that is operated  at 
more than 15 psi shall be inspected annually.

  History:  1979 AC; 1995 AACS; 2002 AACS; 2006 AACS.


R 408.4185   Safety appurtenances and controls.
  Rule 185. A person shall not attempt to remove, or shall not  do  any  work 
upon, any safety appurtenance or control prescribed by these  rules  while  a 
boiler is in operation. If an appurtenance or control is  repaired  during an 
outage of a boiler, it shall be  reinstalled  and  in  proper  working  order 
before the appurtenance or control is placed back  in   service.   A   person 
shall not load the safety valve or valves to maintain a  working  pressure of 
more than that stated on the certificate of inspection.

  History:  1979 AC; 1995 AACS.


R 408.4186  Rescinded.

  History:  1979 AC; 1985 AACS; 1995 AACS; rescinded 2009 MR  10,  Eff.  July 
27, 2009.


R 408.4187   Prevention of contamination of potable water supply.
  Rule 187.   The  boiler  owner  shall  ensure  that  a  boiler  has  proper 
connections to the potable water supply system to prevent contamination.  The 
connections shall be as specified in the Michigan plumbing code, R  408.30701 
to R 408.30796.

  History:  1979 AC; 1995 AACS; 2002 AACS.


R 408.4189   Air for combustion.
  Rule 189.  The boiler owner shall ensure that a boiler has adequate outside 
combustion air as specified in the  Michigan mechanical code, R 408.30901a to 
R 408.30998a.

  History:  1979 AC; 1998-2000 AACS; 2002 AACS.


R 408.4193  Stairways, ladders, platforms, and runways.
  Rule 193.  (1)  A platform shall be installed at 1 end of all  drums  of  a 
water tube boiler that are more than 4 feet above the  floor  or  walkway  to 
permit safe access to the interior of the drums for cleanout and inspection.
   (2)  An inspector shall notify the chief inspector of an owner or user who 
is required to conform to this rule,  and  the  chief  inspector  shall  give 
written notice to the owner or user that the  installation  of  the  required 
stairway, runway, platform, or ladder is to be made.  The owner or user shall 
be allowed 1 year from the date of  the  chief  inspector's  notification  to 
complete the work.
  (3)  A licensee may request a deviation from the requirements of this  rule 
by submitting drawings to the chief inspector for review and approval  before 
installation of the boiler.  The licensee  will  be  notified  by  the  chief 
inspector of the approval or denial of the request.

  History:  1979 AC; 1995 AACS; 2002 AACS; 2009 MR 10, Eff. July 27, 2009.


R 408.4195  Exits from boiler rooms.
  Rule 195.  The owner shall ensure that the exit from a boiler room complies 
with the requirements specified in the Michigan building code, R 408.30401 to 
R 408.30547.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS; 2009 MR  10,  Eff.  July  27, 
2009.


R 408.4197  Clearance between boilers and other objects.
  Rule 197.  (1)  A licensee performing an installation shall assure  that  a 
minimum clearance of 24 inches is provided between a  boiler,  its  controls, 
firing equipment, and appurtenances and the building walls and partitions  or 
other boilers or machinery.  The licensee shall assure that clearances are in 
accordance with the manufacturer's instructions where required clearances are 
greater than the minimum required by  this  rule.   The  boiler  owner  shall 
assure that the clearances are maintained for the  life  of  the  boiler  and 
shall not be infringed upon by items in storage.
  (2)  The elevation of a boiler above the floor shall be as specified in the 
Michigan mechanical code, R 408.30901 to R 408.30998.
  (3)  A licensee may request a deviation from the requirements of this  rule 
by submitting drawings to the chief inspector for review and approval  before 
installation of the boiler.  The licensee shall  be  notified  by  the  chief 
inspector of the approval or denial of the request.

  History:  1979 AC; 2002 AACS; 2006 AACS; 2009 MR 10, Eff. July 27, 2009.



                      PART 2. EXISTING INSTALLATIONS

                               STEAM BOILERS


R 408.4201   Existing steam boilers.
  Rule 201. "Existing steam boilers," as used in  this   part,   mean   steam 
boilers that are in actual use, or which are installed and  ready   for   use 
prior to August 10, 1917. It should not be applied  to  secondhand   boilers, 
rental boilers, or to boilers that are subject to change  in   ownership   or 
are to be reset, in which case the rules for new construction shall apply.

  History:  1979 AC.


R 408.4202   Age limit of nonstandard existing steam boilers.
  Rule 202. The age limit  of  any  boiler   of   nonstandard   construction, 
installed prior to the date this law became effective, shall  be   30   years 
except that after a  thorough  internal  and  external   inspection   and   a 
hydrostatic pressure of 1 1/2 times the  allowable   working   pressure   and 
held for a period of at least 30 minutes,  during  which   no   distress   or 
leakage develops, any boilers having other than  a  lap-riveted  longitudinal 
joint may be continued in operation without reduction in working pressure.

  History:  1979 AC.


R 408.4203   Age limit of lap seam boilers.
  Rule 203. The age limit of any boiler   having   lap-riveted   longitudinal 
joints and operating at a pressure in excess of 50 psi shall  be  20   years; 
this type of boiler, when removed from an existing setting,  shall   not   be 
reinstalled for a pressure in excess of 15  psi.  A   reasonable   time   for 
replacement, not to exceed 1 year, may be given at the  discretion   of   the 
chief inspector.

  History:  1979 AC.


R 408.4205   Lap seam crack.
  Rule 205. The shell or drum of a boiler in which  a   typical   "lap   seam 
crack" is discovered along a longitudinal  riveted  joint   or   lap   joints 
shall be permanently discontinued for use under  pressure.   By   "lap   seam 
crack" is meant the typical crack frequently found in  lap  seams   extending 
parallel to the longitudinal joint and located either between or  adjacent to 
rivet holes.

  History:  1979 AC.


R 408.4206   Age limit of standard existing boilers.
  Rule 206. The age limit of boilers of  standard   construction   shall   be 
dependent on a thorough internal and external  inspection   and   hydrostatic 
pressure test of 1 1/2 times the allowable working pressure for  a  period of 
30 minutes. If the boiler   under   these   test   conditions   exhibits   no 
distress or leakage, it may be continued in operation at  the  same   working 
pressure.

  History:  1979 AC.


R 408.4207   Factors of safety.
  Rule 207. (1) The lowest factor of safety that will   be   permissible   on 
existing installations under any conditions  is   4.5.   Secondhand   boilers 
shall have a minimum factor of safety of 5 when   the   longitudinal   joints 
are of butt- and double-strap construction, and a minimum factor of safety of 
6  when  the  longitudinal  joints  are  of  lap-riveted  construction.
Horizontal-return tubular boilers having continuous  lap-riveted  joints   of 
more than 12 feet in length shall have a factor  of  safety   of   not   less 
than 8.
  (2) The factors of safety for all standard  boilers   having   longitudinal 
joints other than lap-riveted construction shall be increased at  the  end of 
its specified age limit by not less  than   5/10,   except   that   after   a 
thorough internal and external inspection and a hydrostatic pressure  test of 
1 1/2 times the pressure allowed and held for  a  period  of  at   least   30 
minutes, during which no distress or leakage develops, the  pressure  may  be 
continued at a factor of 5.5.  These  factors  may  be   increased   by   the 
inspector as the condition and safety of the boiler may dictate,  and  in  no 
case shall the factor of safety be less than called for by  the   rules   for 
new construction.
  (3) In no case shall the  maximum  allowable  working   pressure   on   old 
boilers be increased, unless they are being operated at  a  lesser   pressure 
than would be allowable  for  new  boilers,  in  which   case   the   changed 
pressure shall not exceed that allowable  for  new  boilers   of   the   same 
construction.

  History:  1979 AC.


R 408.4208   Portable boilers.
  Rule 208. Portable boilers, such as used  by  contractors,  agriculturists, 
sawmills, etc., used for purely portable  purposes   and   transported   from 
place to place, shall be deemed secondhand  in  the  event   of   change   of 
ownership, irrespective of change of location, and shall  comply   with   the 
rules for new construction when reinstalled at a new  location.  They   shall 
have a factor of safety of at least 5.5 where  of   butt-strap   construction 
and a factor of safety of not less than 6 where of lap-seam  construction.

  History:  1979 AC.


R 408.4210   Cast-iron headers and mud drums.
  Rule 210. The maximum allowable working pressure on  a  water-tube  boiler, 
the tubes of which are secured to cast-iron or  malleable-iron  headers,   or 
which have cast-iron mud drums, shall not exceed  160   psig.   The   maximum 
allowable working  pressure  of  a  steam  boiler   constructed   wholly   or 
principally of cast iron shall  not  exceed  15  psi.   Hot   water   boilers 
operating at temperatures not to exceed  250  degrees   Fahrenheit   may   be 
operated at pressures up to 160 psi.

  History:  1979 AC.


R 408.4212   Maximum allowable working pressure.
  Rule 212. (1) The maximum allowable working pressure  on   the   shell   or 
drum of a boiler shall be  determined  by  the  strength   of   the   weakest 
section of the structure, computed from the thickness of   the   plate,   the 
tensile strength of the plate, the efficiency of the longitudinal joint or of 
the ligaments between tube holes in the  shell  or  drum  (whichever  is  the 
least), the inside diameter of the outside course and the  factor  of  safety 
allowed by these rules.

        TStE/RFS  = Maximum allowable working pressure, psi


where   TS = ultimate tensile strength of shell plates, psi.
        t  = minimum thickness of shell plate, in weakest course, inches
        E  = efficiency of longitudinal joint:
                For riveted construction, E shall be determined by the rules
                based on the ratio which the strength of the joint bears to
                the strength of the solid plate.
                For fusion-welded construction, E shall be determined by  the 
rules applying to
                the class of welding used.
                For tube ligaments, E shall be determined by the rules based
                on the ratio of the cross-sectional area of the ligaments
                to the entire section of the plate.
                For seamless construction, E shall be considered 100%.
        R  = one half the insude diameter of the weakest course of shell
             or drum, inches
        FS = factor of safety permitted by these rules.

  (2) When the tensile strength of steel or wrought-iron  shell   plates   is 
not known, it shall be taken as 55,000 psi for steel and   45,000   psi   for 
wrought iron.
  (3) In computing the efficiency of riveted  joints,   the   resistance   to 
crushing of mild steel shall be taken as  95,000   psi   of   cross-sectional 
area.
  (4) When computing  the  ultimate  strength  of  rivets   in   shear,   the 
following values in pounds per square inch of the  cross-sectional  area   of 
the rivet shank shall be used:
        Iron rivets in single shear . . . . . . . . . . . . . . 38,000
        Iron rivets in double shear . . . . . . . . . . . . . . 76,000
        Steel rivets in single shear  . . . . . . . . . . . . . 44,000
        Steel rivets in double shear  . . . . . . . . . . . . .  88,000  When 
the diameter of the rivet holes  in  the  longitudinal  joints  of  a  boiler 
is not known, the diameter and cross-sectional area of rivet  shanks  may  be 
selected from table 1, or they may be ascertained by cutting out  1 rivet  in 
the body of the joint.
  (5) In no case shall a boiler be designed for a pressure   less   than   30 
psi.
 TABLE 1
                        SIZES OF RIVETS BASED ON PLATE THICKNESS


Thickness of plate, inches  1/4 9/32 5/16 11/32 3/8 13/32 Diameter  of  rivet 
after driving, inches 11/16 11/16 3/4 3/4 13/16  13/16  Thickness  of  plate, 
inches  7/16 15/32 1/2 9/16 5/8 ....
Diameter of rivet after driving, inches 15/16   15/16 15/16   1 1/16  1  1/16 
....

  History:  1979 AC.


R 408.4214   Safety and safety relief valves.
  Rule 214. A person shall not use weighted-lever safety  valves  or   safety 
valves that have a seat or disk made of cast iron. Valves of  this  type   or 
construction shall be replaced by direct spring-loaded  pop-type  valves   or 
safety relief valves that are in compliance with the  requirements   of   the 
ASME power boiler code and shall be  connected  to  the   boiler   with   the 
spindle vertical.

  History:  1979 AC; 1995 AACS.


R 408.4215   Number of safety valves.
  Rule 215. Each boiler shall have at least 1 safety valve;  and   if   power 
boilers have more than 500 square  feet  of   water-heating   surface,   such 
boilers shall have 2 or more safety valves.

  History:  1979 AC.


R 408.4216   Safety valve connections.
  Rule 216. The  valve  or  valves  shall  be  connected   to   the   boiler, 
independent of any other  steam  connection,  and  attached   as   close   as 
possible to the boiler, without unnecessary intervening pipe or  fittings.
Where alteration is required to conform to  this   requirement,   owners   or 
users shall be allowed reasonable time in which to complete the work.

  History:  1979 AC.


R 408.4217   Safety valve discharge pipes.
  Rule 217. No valves of any  description  shall  be   placed   between   the 
safety valve and the boiler nor on the  escape  pipe   between   the   safety 
valve and the atmosphere. When an escape pipe is used, it   shall   be   full 
size of the safety valve discharge  and  fitted  with  an   open   drain   to 
prevent water lodging in the upper part of  the  safety   valve   or   escape 
pipe. When an elbow is placed on a safety valve escape pipe,  it   shall   be 
located close to the safety valve outlet and  the  escape   pipe   shall   be 
anchored and supported securely. All safety valve discharges  shall   be   so 
located or piped as to be carried clear from walkways   or   platforms   used 
for access to main stop valves of boilers or steam headers.

  History:  1979 AC.


R 408.4218   Safety valve capacity.
  Rule 218. The safety valve capacity of each boiler shall   be   such   that 
the safety valve or valves will  discharge  all  the  steam   that   can   be 
generated by the boiler without allowing the pressure to rise  more  than  6% 
above the highest pressure to which any valve is set, and in   no   case   to 
more than 6% above the  maximum  allowable  working   pressure.   The   steam 
safety valve capacity for each steam heating boiler  shall   be   such   that 
with the fuel-burning equipment installed, the pressure  cannot   rise   more 
than 5 psi above the maximum allowable working pressure of the boiler.

  History:  1979 AC.


R 408.4219   Safety valve pressure setting.
  Rule 219. One or more safety valves on every boiler shall be  set   at   or 
below the maximum allowable working pressure. The remaining  valves  may   be 
set within a range of 3% above the maximum allowable  working  pressure,  but 
the range of setting of all of the safety valves on  a   boiler   shall   not 
exceed 10% of the highest pressure to which any valve is set.

  History:  1979 AC.


R 408.4220   Safety valves on connected boilers of  different  pressures.
  Rule 220. When 2 or more boilers operating at   different   pressures   and 
safety valve settings are interconnected, the lower   pressure   boilers   or 
interconnected piping shall be equipped with safety  valves   of   sufficient 
capacity to prevent overpressure, considering the maximum  amount  of   steam 
that can flow into the lower pressure system.

  History:  1979 AC.


R 408.4222   Safety valve setting on boilers with direct feed.
  Rule 222. In those cases where the boiler  is   supplied   with   feedwater 
directly from water mains without the use of  feeding   apparatus   (not   to 
include return traps), no safety valve shall be set at  a   pressure   higher 
than 94% of the lowest pressure obtained in the supply   main   feeding   the 
boiler.

  History:  1979 AC.


R 408.4223   Determining safety valve capacity.
  Rule 223. (1) The relieving capacity of the safety valves  on  any   boiler 
shall be checked by 1 of the 3 following  methods  and,  if   found   to   be 
insufficient, additional valves shall be provided:
  (a) By making the accumulation test, which consists of  shutting  off   all 
other steam discharge outlets from the boiler and forcing the  fires  to  the 
maximum. The safety valve capacity shall be sufficient to prevent  a  rise of 
pressure in excess of 6% of the  maximum  allowable  working  pressure.
This method should not be used on a boiler with a superheater or reheater.
  (b) By measuring the maximum amount of  fuel  that  can   be   burned   and 
computing  the  corresponding  evaporative   capacity    (steam    generating 
capacity) upon the  basis  of  the  heating  value  of   this   fuel.   These 
computations shall be made as outlined in the appendix of  the   ASME   power 
boiler code.
  (c) By measuring the maximum amount of feedwater that can be evaporated.
  (2) When either of the methods outlined in  subrule  (1)(b)   or   (c)   is 
employed, the sum of the safety valve capacities  shall  be   equal   to   or 
greater than the maximum evaporative capacity   (maximum   steam   generating 
capacity) of the boiler.

  History:  1979 AC.


R 408.4225   Replacement of safety valves.
  Rule 225. When it becomes necessary to replace safety or  relief  valves on 
low pressure heating or process boilers for any reason, the replacement shall 
be made with other than a top-outlet type valve.

  History:  1979 AC.


R 408.4230   Means of boiler feeding.
  Rule 230. Each boiler shall have a feed supply which will permit  it  to be 
fed at any time while under pressure. A power boiler having  more   than  500 
square feet of water heating surface  shall  have  at  least   2   means   of 
feeding, 1  of  which  shall  be  an  approved  feed   pump,   injector,   or 
inspirator, except boilers fired by gaseous,  liquid,  or   solid   fuel   in 
suspension may be equipped with a single source of  feeding  provided   means 
are provided for immediate shutoff of heat release, and  the  boiler  furnace 
and fuel system do not retain sufficient stored heat to   cause   damage   to 
the boiler if the feed supply is interrupted. A source   of   feed   directly 
from water mains at a pressure of 6% greater than the  release  pressure   of 
the safety valve with the highest release setting may be  considered   1   of 
the means.

  History:  1979 AC.


R 408.4232   Introduction of feedwater into boilers.
  Rule 232. The feedwater shall  be  introduced  into   power   and   heating 
boilers in such manner that it will not be  discharged   close   to   riveted 
joints of shell or furnace sheets or directly against  surfaces  exposed   to 
products of combustion, or to direct radiation from the fire.

  History:  1979 AC.


R 408.4235   Feed valves required.
  Rule 235. The feed piping to a power boiler shall  be   provided   with   a 
check valve near the boiler and a valve or cock between   the   check   valve 
and the boiler. When 2 or more boilers are fed from a  common  source,  there 
shall also be a valve on the branch to each boiler between  the  check  valve 
and source of supply. Whenever a globe valve is used on  feed   piping,   the 
inlet shall be under the disk of the valve. In all cases  where  returns  are 
fed back to power or heating boilers by gravity, there shall   be   a   check 
valve and stop valve in each return line, the  stop  valve   to   be   placed 
between the boiler and the check valve, and both shall be located as close to 
the boiler as is practicable.

  History:  1979 AC.


R 408.4236   Feedwater temperature.
  Rule 236. Where deaerating heaters are not employed,  it   is   recommended 
that the temperature of  the  feedwater  be  not  less   than   120   degrees 
Fahrenheit to avoid the possibility of setting up  localized  stress.   Where 
deaerating heaters are  employed,  it  is  recommended   that   the   minimum 
feedwater temperature be not less than  215  degrees   Fahrenheit   so   that 
dissolved gases may be thoroughly released.

  History:  1979 AC.


R 408.4240   Water column connections.
  Rule 240. No outlet connections (except for  damper  regulator,   feedwater 
regulator, low-water fuel cut-out, drains, steam gauges, pressure controls or 
such apparatus that does not permit the escape of an  appreciable  amount  of 
steam or water therefrom) shall be placed on the piping  that   connects  the 
water column to the boiler. The water column shall be provided with  a valved 
drain of at least 3/4 inches pipe size, the drain to  be  piped  to   a  safe 
location.

  History:  1979 AC.


R 408.4241   Gauge cocks.
  Rule 241. Each power boiler shall have 3 or more   gauge   cocks,   located 
within the visible length of the water glass, except when the  boiler  has  2 
water glasses located on the same horizontal lines. Boilers   not   over   36 
inches in diameter, in which the  heating  surface  does   not   exceed   100 
square feet, need have but 2 gauge cocks. For all  installations  where   the 
water gauge glass or glasses are  more  than  30  feet   above   the   boiler 
operating  floor,  it  is  recommended  that   water-level   indicating    or 
recording gauges be installed at eye height above the operating floor.

  History:  1979 AC.


R 408.4242   Pressure gauges.
  Rule 242. (1) Each steam boiler shall have a pressure  gauge,   with   dial 
range not less than 1 1/2 times the maximum   allowable   working   pressure, 
connected to the steam space or to  the  steam  connection   to   the   water 
column.
  (2) The pressure gauge shall be connected  to  a   siphon   or   equivalent 
device of sufficient capacity to keep the gauge tube filled with water and so 
arranged that the gauge cannot be shut off from the boiler except by  a  cock 
placed near the gauge   and   provided   with   a   tee   or   lever   handle 
arranged to be parallel to the pipe in which it is located when  the  cock is 
open.
  (3) When  a  pressure  gauge  connection  longer  than   8   feet   becomes 
necessary, a shutoff valve may be used near the boiler provided the  valve is 
of the outside-screw-and-yoke type and is locked open. The  line  shall be of 
ample size with provision for free blowing.
  (4) Each boiler shall be provided with a 1/4-inch nipple  and  globe  valve 
connected to the steam space for the exclusive purpose of  attaching  a  test 
gauge when the boiler is in service so that the  accuracy   of   the   boiler 
pressure gauge may be ascertained.
  (5) The scale on the dial of a steam heating boiler shall  be  graduated to 
not less than 30 psi. The travel of the pointer from 0 to 30 psi  shall be at 
least 3 inches.

  History:  1979 AC.


R 408.4244   Stop valves.
  Rule 244. (1) Each steam outlet from a power boiler  (except  safety  valve 
connections) shall be  fitted  with  a  stop  valve  located  as   close   as 
practicable to the boiler.
  (2) When a stop valve is so located that  water   can   accumulate,   ample 
drains shall be provided. The drainage shall be piped to  a   safe   location 
and shall not be discharged on the top of the boiler or its setting.
  (3) When power boilers provided with manholes are connected  to  a   common 
steam main, the steam connection from each boiler shall be  fitted   with   2 
stop valves having an ample free-blow drain between them.  The  discharge  of 
the drain shall be visible to the operator while  manipulating   the   valves 
and shall be piped clear of the boiler  setting.  The   stop   valves   shall 
consist preferably of 1 automatic nonreturn valve (set next  to  the  boiler) 
and a second valve of the outside-screw-and-yoke type.
  (4) A stop valve shall be used in each supply and return pipe connection of 
2 or more heating boilers connected to a common system.
  (5) When a stop valve is used in the supply pipe connection  of  a   single 
heating boiler, there shall be 1 used in the return pipe connection.

  History:  1979 AC.


R 408.4246   Blowoff connections; existing power boilers.
  Rule 246. (1) The construction of the setting around  each   blowoff   pipe 
shall permit free expansion and contraction. Careful   attention   shall   be 
given to the problem of sealing these setting  openings  without  restricting 
the movement of the blowoff piping.
  (2) All blowoff piping, when exposed to furnace heat, shall be protected by 
firebrick or other  heat-resisting  material,   so   constructed   that   the 
piping may be inspected readily.
  (3) Each boiler shall have a blowoff pipe, fitted with a valve or  cock, in 
direct connection with the lowest water space. Cocks shall  be  of  the gland 
or guard type and suitable for the  pressure  allowed.  The   use   of  globe 
valves shall not be permitted.
  (4) When the allowable working pressure  exceeds  100   psi   gauge,   each 
blowoff pipe shall be provided with 2 valves or a  valve   and   cock,   such 
valves and cocks to be at least of the extra-heavy type.
  (5) When the maximum allowable working pressure exceeds  100   psi   gauge, 
blowoff piping shall be at least extra-heavy and shall be   run   full   size 
without use of  reducers  or  bushings.  The  piping  shall   be   at   least 
extra-heavy wrought iron or steel and shall not be galvanized.
  (6) All fittings between the boiler and blowoff valve shall be of steel.
In case of renewal of blowoff pipe or fittings, they shall  be  installed  in 
accordance with the rules and regulations for new installations.
  (7) Each steam heating boiler  shall  have  a   blowoff   pipe   connection 
fitted with a valve or cock not less than 3/4 inches  pipe   size   connected 
with the lowest water space practicable.

  History:  1979 AC.


                   HOT WATER HEATING AND SUPPLY BOILERS


R 408.4251   Existing hot water boilers.
  Rule 251. "Existing hot water boilers," as used in this  part,  means   hot 
water boilers which are in actual use, or which were  installed   and   ready 
for use at the time the act became effective. It should not  be  applied   to 
secondhand boilers, or to boilers that are subject to change in ownership, or 
are to be reset, in which case the rules for  new  construction  should apply.

  History:  1979 AC.


R 408.4253   Hot water boilers included; exempted.
  Rule 253. (1) These rules for hot water boilers shall apply  to   all   hot 
water heating and hot water supply boilers to be   designed   for   pressures 
not  exceeding  160  psi  and  temperatures  not   exceeding   250    degrees 
Fahrenheit.
  (2) For conditions exceeding those specified above, the  rules  for   power 
boilers shall apply.
  (3) Except as provided in R 408.4253(4),  the   following   classifications 
are considered not to be within the jurisdiction of  this   part   of   these 
rules: hot water supply boilers which are directly fired with  oil,  gas,  or 
electricity when none of the following limitations is exceeded:
  (a) A heat input of 200,000 Btu per hour.
  (b) A water temperature of 200 degrees Fahrenheit.
  (c) A nominal water-containing capacity of 120 gallons.
  (4)  All  hot  water  supply  boilers,  including  those   exempted   in  R 
408.4253(3) shall be equipped with safety devices  of  proper  type  and size 
as specified in R 408.4278 and be of code construction.
  (5) For conditions exceeding those specified in  subrule   (1),   cast-iron 
construction is not permitted.

  History:  1979 AC.


R 408.4255   Working pressure  and  temperature;   hot   water    steel-plate 
boilers.
  Rule 255. (1) Wherever the term "maximum allowable  working  pressure"   is 
used herein, it refers  to  gauge  pressure  or  the   pressure   above   the 
atmospheric in pounds per  square  inch.  The   maximum   allowable   working 
temperature at or near the outlet of a hot water  steel-plate  boiler   shall 
not exceed 250 degrees  Fahrenheit,  nor  the   maximum   allowable   working 
pressure to 160 psi. The maximum allowable working pressure on  the  shell or 
drum of steel-plate hot water boilers shall be determined in accordance  with 
the following formulas. In no  case  shall  a  boiler  be  designed   for   a 
pressure less than 30 psi.

        P       = SEt                           t  =  PR
                  R + 0.6t         or                 SE - .06P

Where   P  = maximum allowable working pressure, pounds per square inches
        S  = 20% of the minimum ultimate tensile strength stamped on the
             shell plate, or as indicated in (2).
        t  = minimum thickness of shell plates in weakest course, inches
        E  = efficiency of longitudinal joint or of ligament between tube
             holes (whichever is lesser).
        R  = inside radius of weakesr course of the shell or drum, inches.
  (2) When the tensile strength of steel or wrought-iron  shell   plates   is 
not known, it shall be taken as 55,000 psi for steel and   45,000   psi   for 
wrought iron.

  History:  1979 AC.


R 408.4257   Working temperature; cast-iron hot water boilers.
  Rule 257. The maximum allowable  working  temperature  at   or   near   the 
outlet of a hot water  cast-iron  boiler  shall  not   exceed   250   degrees 
Fahrenheit.

  History:  1979 AC.


R 408.4258   Washout openings; other than cast-iron boilers.
  Rule 258. All boilers  other  than  cast-iron  shall   be   provided   with 
suitable manhole openings or handhole or washout plug  openings   to   permit 
inspection and permit removal of any sediment which may accumulate.

  History:  1979 AC.


R 408.4259   Washout openings; cast-iron boilers.
  Rule 259. All cast-iron steam and hot water boilers   shall   be   provided 
with suitable washout openings to permit the removal of  any  sediment   that 
may accumulate therein.

  History:  1979 AC.


R 408.4260   Furnace access openings.
  Rule 260. A firedoor or other access  opening,  not  less  than   11  x  15 
inches or 10 x 16 inches or 15 inches in diameter, shall  be   provided   for 
the furnace of an internally fired boiler other than  cast-iron   which   the 
least furnace dimension is 28 inches or over.

  History:  1979 AC.


R 408.4263   Threaded connections.
  Rule 263. Pipe connections, if threaded, shall be  tapped   into   material 
having a minimum thickness as specified in table HG-370, except that  when  a 
curved surface is to be tapped the minimum thickness shall be  sufficient  to 
permit at least 4 full threads to be engaged.

                                TABLE HG-370
      MINIMUM THICKNESS OF MATERIAL FOR THREADED CONNECTIONS TO BOILERS


 Size of Pipe Connection, Minimum Thickness of Material  Inches     Required, 
Inches


Under 3/4                                       1/4 3/4 to 1, inclusive
                      5/16 1 1/4 to 2  1/2,   inclusive  7/16  3  to  3  1/2, 
inclusive                           5/8 4 to 5, inclusive
                           7/8 6 to 8, inclusive
 1 9 to 12, inclusive                              1 1/4

  History:  1954 ACS 49, Eff. Feb. 14, 1967; 1979 AC.


R 408.4265   Minimum distance required between boiler and floor.
  Rule 265. Boilers other than cast iron of the wet-bottom  type  having   an 
external width of over 36 inches  shall  have  not  less   than   12   inches 
between the bottom of the boiler and  the  floor  line,   with   access   for 
inspection. When the width is 36 inches or less, the  distance  between   the 
bottom of the boiler and the floor line shall be not less   than   6   inches 
and when any part of the wet bottom is not farther from an outer edge than 12 
inches, it shall be not less than 4 inches.

  History:  1979 AC.


R 408.4267   Minimum size access door in a boiler setting.
  Rule 267. The minimum size of access door used in a boiler setting shall be 
12 x 16 inches or equivalent area, the least dimension being 11 inches.

  History:  1979 AC.


R 408.4268   Feedwater connections.
  Rule  268.  Feedwater,  make-up  water,  or  water   treatment   shall   be 
introduced into a boiler through the return piping system   or   through   an 
independent feedwater connection which does not discharge  against  parts  of 
the boiler exposed to  direct  radiant  heat  from   the   fire.   Feedwater, 
make-up water, or water treatment shall not be introduced through openings or
 connections  provided   for   inspection   or   cleaning,   safety    valve, 
safety-relief valve, surface or main blowoff, water   column,   water   gauge 
glass, pressure gauge, or temperature gauge.

  History:  1979 AC.


R 408.4269   Oil heaters.
  Rule 269. A heater for oil or other liquid harmful  to   boiler   operation 
shall not be installed directly in the water space within a boiler.

  History:  1979 AC.


R 408.4270   Provisions for thermal expansion in hot water systems.
  Rule 270. (1) All hot water  heating  systems   incorporating   hot   water 
tanks or fluid relief columns shall be so installed as  to  prevent  freezing 
under normal operating conditions.
  (2) If the system is equipped with an open  expansion   tank,   an   indoor 
overflow from the upper portion of the expansion tank shall  be  provided  in 
addition to an open vent. The indoor overflow shall be  carried  within   the 
building to a suitable plumbing fixture or to the basement.
  (3) If the system is of the closed  type,  an  airtight   tank   or   other 
suitable air cushion shall be installed that will be  consistent   with   the 
volume and capacity of the system, and shall be suitably   designed   for   a 
hydrostatic test pressure of 2 1/2 times the allowable  working  pressure  of 
the system. Expansion tanks for systems designed to operate at  or  above  30 
psi shall be constructed in accordance with the provisions of section VIII of 
the ASME boiler  and  pressure   vessel   code,   1983   edition,   and   its 
addenda. Provisions shall be made for draining the  tank   without   emptying 
the system, except for pressurized tanks.

  History:  1979 AC; 1985 AACS.


R 408.4272   Minimum capacity of closed-type tank.
  Rule 272. The minimum capacity of the closed-type expansion  tank  may   be 
determined from tables 272A and 272B or from the  following   formula   where 
the necessary information is available.

        Vt  = (0.00041 T-).0466Vs
                  Pa  -  Pa
                  Pf  -  Po

Where:  Vt = minimum volume of tanks, gallons
        Vs = volume of system, not including tanks, gallons
        T  = average operating temperature, degrees Fahrenheit
        Pa = atmospheric pressure, psia
        Pf = fill pressure, psia
        Po = maximum operating pressure, psia

                                Table 272A
                Expansion Tank Capacity for Gravity Hot Water  Systems  Based 
on 2-pipe  system  with  average  operating  water  temperature  170  degrees 
Faherenheit, using cast iron column radiation with heat emission rate 150 Btu 
per hour square foot equivaelnt direct radiation.

        Square Feet of Installed                Tank Capacity
        Equivalent Direct Radiation 1           Gallons

        Up to 350                               18
        Up to 450                               21
        Up to 650                               24
        Up to 900                               30
        Up to 1,100                             35
        Up to 1,400                             40
        Up to 1,600                             2 - 30
        Up to 1,800                             2 - 30
        Up to 2,000                             2 - 35
        Up to 2,400                             2 - 40

1 For systems with more than 2,400 square feet of installed equivalent direct 
water radiation, the required capacity of the cushion tank shall be increased 
on the basis of 1 gallon tank capacity  per  33  square  feet  of  additional 
equivalent direct radiation.

                                Table 272B
                Expansion Tank Capacities for Forced Hot Water Systems  Based 
on average  operating  water  temperature  195  degrees  Fahrenheit,  a  fill 
pressure 12 psig and maximum operating pressure 30 psig.

        System Volume, Gallons 1        Tank Capacity, Gallons

        100                                     15
        200                                     30
        300                                     45
        400                                     60
        500                                     75
        1,000                                   150
        2,000                                   300

1 Includes volume water in  boiler,  radiation,  and  piping,  not  including 
expansion tank.

  History:  1979 AC.


R 408.4274   Internal parts subject to deterioration.
  Rule 274. Materials shall not be  used  for  internal   parts   which   are 
liable to fail due to deterioration  when  subjected   to   saturated   steam 
temperatures at or below the maximum allowable working pressure.

  History:  1979 AC.


R 408.4277   Connections for relief valves.
  Rule 277. The area of the  opening  shall  be  at  least   equal   to   the 
aggregate area based on the nominal diameters of all of  the  relief   valves 
with which it connects. A screwed connection may be used  for   attaching   a 
relief valve.

  History:  1979 AC.


R 408.4278   Relief valves.
  Rule 278. (1) Each hot  water  heater  boiler  shall  have   at   least   1 
officially rated pressure relief valve set to  relieve  at   or   below   the 
maximum allowable working pressure of the boiler.
  (2) Each hot water supply boiler shall have at least  1  officially   rated 
safety relief valve or at least 1   officially   rated   pressure-temperature 
relief valve of the automatic-reseating type set to relieve   at   or   below 
the maximum allowable working pressure of the boiler.
  (3) When more than 1 relief valve is used on either hot  water  heating  or 
hot water  supply  boilers,  the  additional  valve  or   valves   shall   be 
officially rated and may be set within a range not to exceed  6   psi   above 
the maximum allowable working pressure of the boiler up to  and  including 60 
psi and 10% for those   having   a   maximum   allowable   working   pressure 
exceeding 60 psi.
  (4) Relief valves shall be spring loaded  without  disk   guides   on   the 
pressure side of the valve.
  (5) Relief valves shall be so arranged that  they  cannot   be   reset   to 
relieve at a higher pressure than the maximum permitted by this rule.

  History:  1979 AC.


R 408.4280   Lifting devices.
  Rule 280. Each relief valve shall have a substantial  device   which   will 
positively lift the disk from its seat at least 1/16 inch when  there  is  no 
pressure on the boiler.

  History:  1979 AC.


R 408.4281   Material of seats and disks of relief valves.
  Rule 281. Seats and disks of relief valves shall be of material suitable to 
resist corrosion. No materials liable  to  fail  due  to   deterioration   or 
vulcanization when subject to saturated steam  temperature  corresponding  to 
capacity test pressure shall be used for any part.

  History:  1979 AC.


R 408.4283   Relief valve size.
  Rule 283. No relief valve shall be smaller than 3/4 inch nor larger than  4 
1/2 inches standard pipe size. The inlet  opening  shall   have   an   inside 
diameter approximately equal to, or greater than, the seat  diameter.  In  no 
case shall the minimum opening through any part of the valve  be  less   than 
1/4 inch diameter or its equivalent area.

  History:  1979 AC.


R 408.4284   Relieving capacity required.
  Rule 284. (1) The required steam-relieving capacity, in pounds per hour, of 
the pressure-relieving device or devices   on   a   boiler   shall   be   the 
greater of that determined by dividing the maximum output in   Btu   at   the 
boiler nozzle obtained by the firing of any fuel for  which   the   unit   is 
designed by 1,000 or by multiplying the square feet of heating surface  by 5.
In many cases a greater relieving capacity  of  valves  will   have   to   be 
provided than the minimum specified by these rules.  In   every   case,   the 
requirements of subrule (3) shall be met.
  (2) When operating conditions are changed, or  additional  boiler   heating 
surface is installed, the valve capacity shall be increased, if necessary, to 
meet the new conditions and be  in   accordance   with   subrule   (3).   The 
additional valves required, on  account  of  changed   conditions,   may   be 
installed on the outlet piping provided there is an intervening valve.
  (3) Relief valve capacity for each boiler shall be such   that   with   the 
maximum heat input the pressure cannot rise more  than  6   psi   above   the 
maximum allowable pressure for pressures up to and including   60   psi   and 
10% for maximum allowable working pressures over 60 psi.

  History:  1979 AC.


R 408.4286   Relief valve connections.
  Rule 286. (1) Relief valves shall be connected to the   top   of   boilers, 
with the spindle vertical either directly to a tapped or  flanged  opening in 
the boiler, to a fitting connected to the boiler by a  close  nipple,   to  a 
Y-base, to a valveless water pipe between   adjacent   boilers,   or   to   a 
valveless header connecting water outlets  on  the  same   boiler.   When   a 
Y-base is used the inlet area shall be not less than  the   combined   outlet 
areas.
  (2) When the size of the boiler requires  a  relief  valve  larger  than  4 
1/2 inches diameter, 2 or more valves having the required capacity  shall  be 
used. When 2 or more valves are used on  a  boiler,  they  may   be   single, 
directly attached, or mounted on a Y-base.

  History:  1979 AC.


R 408.4287   Shutoff valves prohibited.
  Rule 287. No shutoff of any description  shall  be   placed   between   the 
relief valve and the boiler, nor on discharge pipes   between   such   valves 
and the atmosphere. Relief valves shall not be connected   to   an   internal 
pipe in the boiler.

  History:  1979 AC.


R 408.4288   Area of and support of relief valve discharge pipes.
  Rule 288. (1) When a discharge pipe is used, its area shall  be  not   less 
than the area of  the  valve  or  aggregate  area  based   on   the   nominal 
diameters of the valves with which it connects,  and   the   discharge   pipe 
shall be fitted with an open drain to prevent water from   lodging   in   the 
upper part of the valve or in the pipe. When  an  elbow  is   placed   on   a 
relief-valve discharge pipe, it  shall  be  located  close   to   the   valve 
outlet. The pipe shall be supported so that no undue stress  is   placed   on 
the valve body.
  (2) The discharge from relief valves shall be  arranged   so   that   there 
will be no danger of scalding attendants.

  History:  1979 AC.


R 408.4290   Marking of safety or relief valves.
  Rule 290. Each safety or relief valve shall be  plainly   marked   by   the 
manufacturer in such a way that the markings will not   be   obliterated   in 
service. The markings shall be cast or stamped on the valve body  or  on  the 
lifting lever, providing the lifting lever is permanently  attached  to   the 
valve, or, when desirable because of size, all or  part   of   the   required 
markings may be stamped, cast  or  etched  on  a  plate   or   plates,   each 
securely fastened to the valve body, lever or other permanent  part  of   the 
valve, and such markings shall include the following:
  (a) The name or identifying trademark of manufacturer.
  (b) Size _____________________________ inches.
           (The pipe size of the inlet)
  (c) Pressure _________________________________________ psi.
               (The pressure at which it is set to blow)
  (d) Capacity ____________________________ lb. per hour, or
      Capacity ______________________________ Btu per hour in accordance
      with Par. H-51(d) ASME code.
  (e) ASME symbol as shown in Fig. H-4 ASME code.

  History:  1979 AC.


R 408.4291   Indirectly heated hot water supply tanks.
  Rule 291. When a hot water supply is heated indirectly  by   steam   in   a 
coil or pipe, the pressure of the steam used shall  not   exceed   the   safe 
working pressure of the hot water tank, and a relief valve of  at   least   1 
inch in diameter, set to relieve at or below the  maximum  allowable  working 
pressure of the tank, shall be applied on the tank.

  History:  1979 AC.


R 408.4292   Pressure or altitude gauges.
  Rule 292. Each hot water boiler shall have a pressure  or  altitude   gauge 
connected to it or to its flow connection in such a manner that it  cannot be 
shut off from the boiler except by a  cock  with   tee   or   level   handle, 
placed on the pipe near the  gauge.  The  handle  of  the   cock   shall   be 
parallel to the pipe in which it is located when the  cock   is   open.   The 
scale on the dial of the pressure or altitude gauge shall  be  graduated   to 
not less than 1 1/2 times the  maximum  allowable   working   pressure.   The 
gauge shall be provided with effective stops for the  indicating  pointer  at 
the  zero  point  and  at  the  maximum  pressure    point.    Pressure    or 
altitude-gauge connections shall be of nonferrous  composition  when  smaller 
than 1-inch pipe size and longer than 5 feet between the gauge  and  point of 
connection of pipe to boiler, and also when smaller than 1/2-inch  pipe  size 
and shorter than 5 feet between the gauge and point of connection  of pipe to 
boiler.

  History:  1979 AC.


R 408.4293   Thermometers.
  Rule 293. Each hot water boiler shall have a thermometer  so  located   and 
connected that it shall  be  easily  readable  when   observing   the   water 
pressure or altitude. The thermometer shall be so located that  it  shall  at 
all times indicate the temperature in degrees Fahrenheit of  the   water   in 
the boiler at or near the outlet.

  History:  1979 AC.


R 408.4294   Temperature combustion regulators.
  Rule 294. (1) In addition to the mandatory requirements  for   a   pressure 
relief device required by R 408.4278, an   individual   automatically   fired 
hot water heating or hot water supply boiler in addition  to  the   operating 
control  used  for  normal  boiler  operation,  shall   have    a    separate 
high-limit-temperature-actuated combustion control that will  cut   off   the 
fuel supply. The temperature range  of   a   high-limit-actuated   combustion 
control shall not allow a maximum setting over 250  degrees  Fahrenheit   and 
shall control the rate of combustion to prevent  the   temperature   of   the 
water from rising above 250 degrees  Fahrenheit  at  or   near   the   boiler 
outlet. Separate controls may have a common connection to the boiler.
  (2) When it is known that the Btu input to a  hot   water   supply   boiler 
does not exceed 200,000 or the volume does not  exceed   120   gallons,   the 
maximum setting of the high-limit control determines whether  the  hot  water 
supply boiler is subject to these rules. The settings at  which   stops   are 
inserted can be considered to be the determining factor if  the  setting   is 
with metallic fixed stops.

  History:  1979 AC.


R 408.4296   Bottom blowoffs or drain valves.
  Rule 296. (1) Each boiler shall have a  bottom  blowoff   or   drain   pipe 
connection fitted with a valve or cock connected  with   the   lowest   water 
space practicable, with the minimum size of blowoff piping  and   valves   as 
shown in table 296.

                                 Table 296
                Size of Bottom Blowoff Piping and Valves

                Minimum Required                Blowoff
        Safety or Relief Valve Capacity         Valves
             Lb. of Steam per Hour              Size, Inches

                Up to 500                       3/4
                501 to 1,250                    1
                1,251 to 2,500                  1 1/4
                2,501 to 6,000                  1 1/2
                6,001 and larger                2

To determine the discharge capacity of relief valves in terms  of  Btu,   the 
relieving capacity in pounds of steam per hour is multiplied by 1,000.
  (2) Any discharge piping connected to bottom blowoff  and/or  bottom  drain 
connection shall be full size to the point of discharge.

  History:  1979 AC.


R 408.4298   Jacketed boilers.
  Rule 298. Any or all of the fittings and appliances   required   by   these 
rules may be installed inside of boiler jackets provided  the   water   gauge 
and pressure gauge on a thermometer and pressure gauge on  a   water   boiler 
are visible through an opening or openings at all times.

  History:  1979 AC.


   PART 3.  INSPECTION  AND  TESTING  FOR  NEW   CONSTRUCTION;   INSTALLATION 
AND ALTERATION OF BOILERS AND PIPING


R 408.4301   Scope.
  Rule 301.  All boilers and piping constructed for use in this  state  shall 
be inspected and tested during construction as  required  by  the  applicable 
ASME code sections that are adopted by reference in R 408.4025,  R  408.4027, 
and R 408.4032.  Any alterations to an existing boiler  or  piping  shall  be 
accomplished in accordance with these rules for new construction.

  History:  1979 AC; 1995 AACS; 2002 AACS.


R 408.4302   Boiler installation.
  Rule 302.  (1)  A boiler shall be installed by a licensed boiler  installer 
in accordance with the requirements of the applicable ASME code referenced in
 R 408.4031 and as may be required by these rules.
  (2)  A boiler installer shall file welding procedure  specifications    and 
the  procedure  qualification  reports  qualified  in  accordance  with   the 
requirements  of  the  ASME  code,  section  IX,    welding    and    brazing 
qualifications,  with  the boiler division  of   the    department,    before 
performing  any  installations requiring welding.
  (3)  A boiler installer utilizing  welding  during    installation    shall 
have welding procedure specifications, welder  performance    qualifications, 
and  a quality control manual or procedures to be used or which   were   used 
in  the conduct of the installation available for the inspector's review.

  History:  1979 AC; 1995 AACS; 2002 AACS; 2006 AACS.


R 408.4303   Rescinded.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R 408.4304   Rescinded.

  History:  1995 AACS; 2002 AACS; 2006 AACS.


                PART 5. INSERVICE INSPECTION OF BOILERS


R 408.4501   Inspection.
  Rule 501.  The inspection of boilers as provided for under part 1 of  these 
rules shall be made in accordance with the requirements of the  NBIC,  except 
as modified by these rules.

  History:  1979 AC; 1995 AACS; 2002 AACS.


R 408.4502   Rescinded.

  History:  1995 AACS; 1998-2000 AACS.


R 408.4503   Owner or user to prepare boiler for inspection.
  Rule 503.  All boilers and blowoff vessels, except  for  a   boiler   which 
is exempted by these rules, shall be prepared for inspection  in   accordance 
with the NBIC and these rules by the owner or user  when  notified   by   the 
chief inspector, deputy inspector, or special inspector.  The owner or   user 
shall ensure  that   all   examinations   and   tests   required    by    the 
inspector  are performed.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R 408.4505   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4507  Pressure testing.
  Rule 507.  The inspector  may  require  a  pressure  test  to  assess  leak 
tightness of the pressure retaining item.  Pressure testing methods shall  be 
as described in the NBIC.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS; 2002 AACS; 2006 AACS; 2009 MR 
10, Eff. July 27, 2009.


R 408.4510   Traction boilers.
  Rule 510.  (1)  A traction boiler  is   a   boiler   designed    for    the 
express purpose of pulling farm equipment or to convert  steam   power   into 
flywheel energy  driving  farm  apparatus,  such  as  thrashers,   saws,   or 
grinding  equipment.   Such  boilers  shall  be  subject  to  the   following 
provisions:
  (a)  They  shall  be  tested  hydrostatically  every   3   years    to    a 
hydrostatic pressure of 1 ½ times working pressure, held for sufficient  time
 to   permit  visual  observation  of  all  seams,  joints,   supports,   and 
attachments.
  (b)  All seams, attachments, supports, and joints shall be   exposed    for 
each such annual inspection.
  (2)  Traction boilers used  for  display  or  hobby  purposes   shall   not 
be operated for any other  purpose   but   that   for   which    they    were 
originally constructed.
  (3)  Lap seam boilers shall not be operated in excess of 100 psi.
  (4)  Any repairs by welding or riveting to traction boilers shall  be  made 
by licensed repair shops only after an approved permit  has   been   obtained 
and subject to the approval of the inspector before and after repair is made.

  History:  1979 AC; 2006 AACS.


R 408.4511   Nonvaporizing organic fluid boilers.
  Rule 511.  (1)  A nonvaporizing organic fluid boiler is a  boiler  designed 
to heat, but not vaporize, a fluid in a closed system.
  (2)  The owner shall ensure that a  nonvaporizing  organic   fluid   boiler 
is constructed in accordance with the ASME boiler and pressure vessel code.
  (3)  The owner shall  ensure  that  stop  valves  are   located    at    an 
accessible point in the supply and return pipe connections  as    near    the 
boiler  as  is practicable.
  (4)  The owner shall ensure that a nonvaporizing organic fluid  boiler  has 
the following minimum equipment:
  (a)  One operating temperature control and 1 high limit temperature control.
  (b)  A relief valve of sufficient  capacity   to   relieve    the    excess 
thermal fluid as a result of thermal  expansion  verified   by    engineering 
calculations provided by the owner or user.
  (c)  A thermometer graduated to  not  less  than  133%  of   the   expected 
operating temperature.
  (d)  A pressure gauge graduated  to   not   less   than   150%    of    the 
expected operating pressure.
  (e)  A low level or flow sensing device suitable for operating conditions.
  (5)  The owner shall ensure that a fuel train meets the   requirements   of 
ASME code CSD-1.

  History:  1998-2000 AACS; 2006 AACS.


R 408.4512   Miniature hobby locomotive boilers.
  Rule 512.  (1)  A  miniature  hobby  locomotive  boiler  is   designed   to 
be operated on a narrow gauge track of less than 24 inches.
  (2)  At the initial inspection of a miniature hobby   locomotive    boiler, 
the owner shall provide the chief boiler inspector with design specifications 
and calculations for review and acceptance.  If a boiler  is   approved   for 
use, then the boiler division of the department shall issue  an   identifying 
state number and a deputy boiler inspector shall attach it to the boiler.
  (3)  The owner shall ensure that a miniature hobby locomotive  boiler   has 
the following minimum equipment:
  (a)  A pressure gauge  graduated  to  approximately   1   ½    times    the 
operating pressure, but not more than 4 times the operating pressure.
  (b)  A means to extinguish the  fire  in  the  firebox  if   of    a    low 
water condition.
  (c)  Two means of feeding water to the  boiler,  1  of  which   shall    be 
operable while the locomotive is stationary.
  (d)  A water level gauge glass located so that the top of the  bottom   nut 
of the gauge glass is approximately 10% of the distance between   the   crown 
sheet and the shell, but not less than ½ inch above the crown sheet.
  (e)  Two safety valves set at not  more  than  10%  above   the   operating 
pressure for boilers fabricated after the effective date of the rules.    The 
capacity of the safety valves  shall  be  equal  to  or  greater   than   the 
calculated  steam generating capacity of the boiler.
  (4)  The owner shall determine the maximum allowable working  pressure   of 
a miniature  hobby  locomotive  boiler  by  calculation.    In    place    of 
acceptable  calculations,  the  owner  shall  subject  the   boiler   to    a 
hydrostatic  pressure test  of  1  ½  times  the  owner  specified  operating 
pressure.
  (5)   Triennially,  during  the  certificate    inspection,    the    owner 
shall hydrostatically test the boiler to not more than  1   ½    times    the 
operating pressure.
  (6)    The   boiler   division   of   the    department    shall    develop 
procedures, policies, and check lists necessary to accomplish the inspections
 and  tests required by these rules.
  (7)  Repairs to miniature  hobby  locomotive  boilers  are   exempt    from 
the licensing and permitting requirements of the act.  Repair  welding  shall
 be made in accordance with the requirements of ASME  code   section   IX.
Welding procedures and performance qualification  shall  be  filed  with  the
 boiler division of the department for review.

  History: 1998-2000 AACS; 2006 AACS.


R 408.4513   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4515   Plant  personnel  to  conduct  test  of  boiler   attachments or 
apparatus in presence of inspector.
  Rule 515. If boiler attachments or apparatus require  testing,  then  plant 
personnel shall perform the test in the presence  of  the  inspector,  unless 
otherwise ordered.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4517   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4518   Rescinded.

  History:  1998-2000 AACS; 2006 AACS.


R 408.4520   Failure to prepare boiler for internal inspection.
  Rule 520. If a boiler has not been properly  prepared   for   an   internal 
inspection or the owner or user fails to comply with  the  requirements   for 
hydrostatic test as set forth in these rules, the inspector  may  decline  to 
make the inspection or test and the certificate  of   inspection   shall   be 
withheld until the owner or user complies with the requirements.

  History:  1979 AC.


R 408.4522   Stripping of riveted boiler to determine required data.
  Rule 522. If a riveted boiler is jacketed so that the longitudinal seams of 
shells, drums,  or  domes  cannot  be   seen,   and   if   data   cannot   be 
determined by other means, enough of the jacketing, setting  wall,  or  other 
form of casing or housing shall be removed so that the size  of  the  rivets, 
pitch of the rivets, and other data necessary to determine  the   safety   of 
the boiler may be obtained.

  History:  1979 AC; 1995 AACS.


R 408.4524   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4526   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4529   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4531   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4534   Rescinded.

  History:  1979 AC; 1998-2000 AACS.


R 408.4536   Rescinded.

  History:  1979 AC; 1998-2000 AACS.


R 408.4538   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4545   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4547   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4550   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4554   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4559   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4561   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4566   Inspection and testing of safety valves and safety relief valves.
  Rule 566.  Inspection and testing of safety  valves  and   safety    relief 
valves shall be conducted in  accordance  with  the   NBIC.     The    manual 
lift  test addressed in the NBIC at RB-8400 may be used  instead    of    the 
pressure  test required by RB-8410.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS; 2006 AACS.


R 408.4569   Rescinded.

  History:  1979 AC; 1998-2000 AACS.


R 408.4570   Safety valve setting on boilers with direct feed.
  Rule 570. If a boiler is supplied with  feedwater   directly   from   water 
mains without utilizing feeding apparatus, except for   return   traps,   the 
safety valve shall not be set at a pressure higher than 94%  of  the   lowest 
operating pressure obtained in the supply main feeding the boiler.

  History:  1979 AC; 1995 AACS.


R 408.4572   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4575   Replacement of heating or process boiler  safety   and    relief 
valves.
  Rule 575. When it becomes necessary to replace safety or  relief  valves on 
low pressure heating or process boilers for any reason, the replacement shall 
be made with other than top-outlet type valves.

  History:  1979 AC.


R 408.4578   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000.


R 408.4580   Rescinded.

  History:  1979 AC; 1998-2000 AACS.


R 408.4581   Rerolling tubes.
  Rule 581. Rerolling a tube is considered maintenance,  except  rerolling  a 
tube required as a result of an accident  is  considered   a   repair.   This 
repair work shall require a repair permit and  shall  be   performed   by   a 
licensed repairer.

  History:  1979 AC.


R 408.4583   Rescinded.

  History:  1979 AC; 1998-2000 AACS.


R 408.4586   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4590   Rescinded.

  History:  1979 AC; 1998-2000 AACS.


                        PART 6. REPAIR OF BOILERS

                 SCOPE OF RULES FOR REPAIR BY RIVETING


R 408.4601  Repair to riveted boilers.
Rule 601.  Repairs to riveted boilers by riveting require the prior  approval 
of the boiler division of the department.  The repairs shall be conducted  in 
accordance with the NBIC.

  History:  1979 AC; 1995 AACS; 2002 AACS; 2006 AACS.


R 408.4602   Rescinded.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R 408.4603   Rescinded.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R 408.4604   Rescinded.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R 408.4605   Rescinded.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R 408.4606   Rescinded.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R 408.4607   Rescinded.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R 408.4608   Rescinded.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R 408.4609   Rescinded.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R 408.4610   Rescinded.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R 408.4611   Rescinded.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R 408.4612   Rescinded.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R 408.4613   Rescinded.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R 408.4614   Rescinded.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R 408.4615   Rescinded.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R 408.4616   Rescinded.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R 408.4617   Rescinded.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R 408.4618   Rescinded.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R 408.4619   Rescinded.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R 408.4620   Rescinded.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R 408.4621   Rescinded.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R 408.4622   Rescinded.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R 408.4623   Rescinded.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R 408.4624   Rescinded.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R 408.4625   Rescinded.

  History:  1979 AC; 1981; 1995 AACS; 2006 AACS.


R 408.4626  Repairs by welding.
Rule 626.  Repairs to boilers and piping shall  be  conducted  in  accordance 
with the NBIC.

  History:  1995 AACS; 1998-2000 AACS; 2006 AACS.


R 408.4627   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS; 2006 AACS.


R 408.4628   Rescinded.

  History:  1995 AACS; 2006 AACS.


R 408.4631   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS; 2006 AACS.


R 408.4633   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4637   Rescinded.

  History:  1979 AC; 1981 AACS; 1995 AACS; 2002 AACS; 2006 AACS.


R 408.4643   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4647   Rescinded.

  History:  1979 AC; 1998-2000 AACS.


R 408.4649   Rescinded.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R 408.4650   Rescinded.

  History:  1995 AACS; 2006 AACS.


R 408.4651   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4659   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4660   Rescinded.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R 408.4661   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R  408.4667   Rescinded.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R 408.4668   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4670   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4671   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4672   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4675   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4676   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4680   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4682   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4683   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4684   Rescinded.

  History:  1979 AC; 1998-2000 AACS.


R 408.4686   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4687   Rescinded.

  History:  1979 AC; 1998-2000 AACS.


R 408.4688   Rescinded.

  History:  1979 AC; 1998-2000 AACS.


R 408.4689   Rescinded.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R  408.4690   Rescinded.

  History:  1979 AC; 1998-2000 AACS.


R  408.4691   Rescinded.

  History:  1979 AC; 1998-2000 AACS.


R  408.4693   Rescinded

  History:  1979 AC; 1998-2000 AACS.


R  408.4694   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R  408.4695   Rescinded.

  History:  1979 AC; 1998-2000 AACS.


R  408.4697   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


                    PART 7. BOILER BLOWOFF SYSTEMS


R 408.4701  Design and construction of blowdown vessel reports.
  Rule 701.  (1)  The owner shall ensure that blowdown vessels for use in the 
state of Michigan are designed and constructed as prescribed by  these  rules 
and the ASME boiler and pressure  vessel  code,  section  VIII,  division  1, 
entitled "Unfired Pressure Vessels," 2007  edition,  and  its  2008a  addenda 
which are  adopted  by  reference  in  these  rules  and  are  available  for 
inspection at the Michigan Department of Energy,  Labor  &  Economic  Growth, 
Bureau of Construction Codes, 6546 Mercantile Way, Lansing, Michigan 48911 or 
from the ASME International, 22 Law Drive, Fairfield, New Jersey 07007, at  a 
cost as of the time of adoption  of  these  amendatory  rules  of  $610.00.
National board of boiler and pressure vessel inspector document  NB-27,  2004 
edition, may be used as a guide for the design of blowdown tanks.
  (2)  The owner shall ensure that a blowdown vessel has a minimum  allowable 
working pressure of 50 psig and that the  installation  complies  with  these 
rules and the vessel manufacturer's instructions.
  (a)  The blowdown vessel, its fittings, and connections shall be  sized  so 
that the internal pressure does not rise  more  than  5  psig  above  ambient 
pressure during the blowdown.
  (b)  The blowdown vessel  shall  be  provided  with  adequate  openings  to 
facilitate internal cleaning and inspection.  An internal inspection  of  the 
blowdown vessel shall be conducted during the certificate inspection  of  the 
boiler.
  (c)  The blowdown vessel shall be provided with the following fittings  and 
connection openings in addition to those provided by the manufacturer for the 
proper installation and operation of the vessel:
  (i)  A vent connection.
  (ii)  A drain  connection.   A  drain  connection  is  not  required  on  a 
separator.
  (iii)  A thermometer that has  a  maximum  scale  reading  of  300  degrees 
Fahrenheit and that is located in the water outlet from the blowdown vessel.
  (iv)  A pressure gauge that is graduated from 0 to  30  psig  and  that  is 
attached to the top of the steam space of the blowdown vessel.
  (d)  The blowdown vessel shall be installed in a location that prevents  it 
and its connected piping from freezing and shall be  installed  in  a  manner 
that permits both internal and external inspection.
  (3)  A manufacturer shall provide the boiler division  of  the  department, 
with the manufacturer's data reports.  A data report that  is  signed  by  an 
authorized inspector, together with the ASME code symbol stamp on the vessel, 
is the record denoting that the  blowdown  vessel  has  been  constructed  in 
accordance with the ASME code.
  (4)  The manufacturer shall register all blowdown vessels for  use  in  the 
state of Michigan with the national  board  of  boiler  and  pressure  vessel 
inspector.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS; 2006 AACS; 2009 MR  10,  Eff.
July 27, 2009.



R 408.4704   Rescinded.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R 408.4707   Rescinded.

  History:  1979 AC; 2006 AACS.


R 408.4711   Safe discharge from blowdown system.
  Rule 711.  A safe point of discharge  from  a   blowdown    system    shall 
protect personnel and property from the injurious effects  of  the  discharge 
and  shall not exceed 140 degrees Fahrenheit at the outlet  of  the  blowdown 
vessel.   All safe points of  discharge  shall  be  in  compliance  with  all 
federal, state,  and local regulations governing discharges.

  History:  1979 AC; 1995 AACS; 2002 AACS; 2006 AACS.


R 408.4727   Rescinded.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R 408.4731   Rescinded.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R 408.4735   Rescinded.

  History:  1979 AC; 2006 AACS.


R 408.4739   Rescinded.

  History:  1979 AC; 1995 AACS; 2002 AACS; 2006 AACS.


R 408.4743   Rescinded.

  History:  1979 AC; 2006 AACS.


R 408.4747   Rescinded.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R 408.4750   Rescinded.

  History:  1979 AC; 1995 AACS; 2002 AACS; 2006 AACS.


R 408.4801   Rescinded.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R 408.4851   Rescinded.

  History:  1979 AC; 2006 AACS.


R 408.4853   Rescinded.

  History:  1979 AC; 1995 AACS; 2006 AACS.


R 408.4856   Rescinded.

  History:  1979 AC; 2006 AACS.


R 408.4857   Rescinded.

  History:  1979 AC; 1995 AACS; 1998-2000 AACS.


R 408.4893   Rescinded.

   History: 1979 AC; 2006 AACS.


                           PART 15. HEARINGS


R 408.5501   Conduct of hearings.
   Rule 1501. Hearings shall be conducted as prescribed by Act No. 306 of the 
Public Acts of 1969, as amended,  being  §24.201  et  seq.  of  the  Michigan 
Compiled Laws.

   History: 1979 AC; 1995 AACS.


R 408.5502   Rescinded.

   History: 1979 AC; 1995 AACS.


R 408.5503   Rescinded.

   History: 1979 AC; 1995 AACS.


R 408.5504   Rescinded.

   History: 1979 AC; 1995 AACS.


R 408.5505   Rescinded.

   History: 1979 AC; 1995 AACS.


R 408.5506   Rescinded.

   History: 1979 AC; 1995 AACS.


R 408.5507   Rescinded.

   History: 1979 AC; 1995 AACS.