DEPARTMENT OF ENERGY, LABOR, AND ECONOMIC GROWTH

                              DIRECTOR'S OFFICE

                              CONSTRUCTION CODE

(By authority conferred on the director of the department of  energy,  labor, 
and economic growth by section 4 of 1972 PA 230, MCL 125.1504, and  Executive 
Reorganization Order Nos. 2003-1 and 2008-4, MCL 445.2011 and 445.2025)


                          PART 8. ELECTRICAL CODE


R 408.30801  National electrical code; adoptions  by  reference;  inspection; 
purchase.
  Rule 801.  (1) The standards contained in  the  national  electrical  code, 
2008 edition, except sections 501.30B, 502.30B,  503.30B,  505.25B,  506.25B, 
547.1 to 547.10, and Annex H, as published by the  national  fire  protection 
association (NFPA), shall govern the installation,  replacement,  alteration, 
relocation, and use of electrical systems or material.  With  the  exceptions 
noted, the national electrical code is adopted in these rules by reference.  
  (2)  Fine print notes contained within the body of the code are not adopted 
as a part of the code.  
  (3)  All references to the ANSI/ASME A17.1 2008, safety code for  elevators 
and escalators mean the Michigan elevator code  and  all  references  to  the 
national electrical code mean the Michigan electrical code.  
  (4)  NFPA 110, standard for  emergency  and  standby  power  systems,  2005 
edition and NFPA 111, standard on  stored  electrical  energy  emergency  and 
standby power systems, 2005 edition, are adopted by reference in these rules.
  (5)  The codes are available for inspection at the  Okemos  office  of  the 
Michigan  department  of  energy,  labor,  and  economic  growth,  bureau  of 
construction codes.  
  (6)  The National Electrical Code, NFPA 110, and NFPA 111 may be  purchased 
from the National Fire Protection  Association,  Batterymarch  Park,  Quincy, 
Massachusetts 02269, or from the Michigan Department of  Energy,  Labor,  and 
Economic Growth, Bureau of Construction Codes, 2501 Woodlake Circle,  Okemos, 
Michigan 48864, at a cost as of the  time  of  adoption  of  these  rules  of 
$75.00, $34.50, and $29.00 each, respectively.

  History:  1979 AC; 1980 AACS; 1981 AACS; 1985 AACS; 1986 AACS; 1988 AACS; 
1991 AACS; 1995 AACS; 1998-2000 AACS; 2004 AACS; 2007 AACS; 2009 MR 19, Eff.
Dec. 2, 2009.


R  408.30805   Rescission.
  Rule  805.  Rules  41  through  77  of  the  rules   of   the    electrical 
administrative board, being R 338.1041  to  R  338.1077   of   the   Michigan 
Administrative Code, are rescinded.

  History:  1979 AC.


R 408.30806  Application.
  Rule 806.  Section 80.9 is added to the code to read as follows:
  80.9.  Application.
  (a)  New installations.  The code applies to new installations.   Buildings 
with construction permits dated after adoption of the code shall comply  with 
its requirements.
  (b)  Existing installations.  Existing electrical installations that do not 
comply with the provisions of the code shall be permitted to be continued  in 
use unless the authority having jurisdiction  determines  that  the  lack  of 
conformity with the code presents an imminent  danger  to  occupants.   Where 
changes are required for correction of hazards, a reasonable amount  of  time 
shall be given for compliance, depending on the degree of the hazard.
  (c)   Additions,  alterations,  or  repairs.   Additions,  alterations,  or 
repairs to any  building,  structure,  or  premises  shall  conform  to  that 
required of a new building without requiring the existing building to  comply 
with  all  the   requirements   of   the   code.    Additions,   alterations, 
installations, or repairs shall not cause  an  existing  building  to  become 
unsafe or to adversely affect the performance of the building  as  determined 
by the authority having jurisdiction.  Electrical wiring added to an existing 
service, feeder, or branch circuit shall not result in an  installation  that 
violates the provisions of the code in force at the time  the  additions  are 
made.

  History:  1979 AC; 1981 AACS; 2007 AACS.


R 408.30807  Title.
  Rule 807.  Title.  These rules shall be known as  the  Michigan  electrical 
code, hereinafter referred to as "the code."

  History:  1979 AC; 2004 AACS.

R 408.30808  Scope.
  Rule 808.  Sections 80.1, 80.1.1, 80.1.2, and 80.1.3 are added to the  code 
to read as follows:
  80.1.  Scope.  The code regulates the  design,  installation,  maintenance, 
alteration, and  inspection  of  electrical  systems  including  all  wiring, 
fixtures, appliances, and appurtenances in connection with the utilization of 
electrical energy, within or on a building,  structure,  or  properties,  and 
including service entrance wiring as defined by the code.
  Exception:   Electrical  wiring  and  equipment  within  1-  and   2-family 
dwellings shall be constructed, installed, and maintained in accordance  with 
the Michigan residential code.
  80.1.1.  Intent.  The purpose of the code is to provide  minimum  standards 
to safeguard life or limb, health, property, and public welfare by regulating 
and controlling the design, construction, installation, quality of materials, 
location,  operation,  and  maintenance  or  use  of  electrical  wiring  and 
equipment.
  80.1.2.  Severability.  If a  section,  subsection,  sentence,  clause,  or 
phrase of the code is, for any reason,  held  to  be  unconstitutional,  such 
decision shall not affect the validity of the remaining portions of the code.
  80.1.3.  Code conformity required.  A  person  shall  not  install,  alter, 
maintain, service, or repair, or cause or permit the installation,  altering, 
maintaining, servicing, or repairing of electrical equipment  in  or  on  any 
building, structure, or part thereof, or on any premises, if by the  person's 
action the work does not conform to the provisions of the code.

  History: 2004 AACS; 2007 AACS.


R 408.30809  Purpose.
  Rule 809.  Section 80.3 is added to the code to read as follows:
  80.3.   Purpose.   The  purpose  of  this  article  shall  be  to   provide 
requirements for administration and enforcement of  the  Michigan  electrical 
code.

  History: 2004 AACS; 2007 AACS.


R 408.30810  Authority.
  Rule 810.  Section 80.13 is added to the code to read as follows:
  80.13.  Authority.  Where used in the code, "authority having jurisdiction" 
means the enforcing agency in accordance  with  the  act,  as  defined  in  R 
408.30828.  The code shall be administered  and  enforced  by  the  enforcing 
agency in accordance with the act.

  History:  1979 AC; 1980 AACS; 1981 AACS; 2004 AACS; 2007 AACS.


R 408.30811  Duties and powers of the code official.
  Rule 811.  Section 80.14 is added to the code to read as follows:
  80.14.  Duties and powers of the code official.  The  code  official  shall 
enforce the provisions of the code and shall act on any question relative  to 
the installation, alteration, repair, maintenance, or operation of electrical 
wiring and equipment,  except  as  otherwise  specifically  provided  for  by 
statute.

  History: 2004 AACS.


R 408.30812  Means of Appeal.
  Rule 812.  Sections 80.15 and 80.15.1 are added to  the  code  to  read  as 
follows:
  80.15.  Means of appeal.  A person may appeal a decision of  the  enforcing 
agency to the board of appeals.  An application for appeal shall be based  on 
a claim that the true intent of the code or the rules governing  construction 
have been incorrectly interpreted, the provisions of the code do  not  apply, 
or an equal or better form of  construction  is  proposed.   The  application 
shall be filed under the act.
  80.15.1.  Limitation of authority.  The board  of  appeals  shall  have  no 
authority relative to interpretation of the administration of  the  code  nor 
shall such board be empowered to waive requirements of the code.

  History:  1979 AC; 1981 AACS; 2004 AACS; 2007 AACS.


R 408.30813  Code arrangement.
  Rule 813.  Section 90.3 of the code is amended to read as follows:
  90.3.  Code arrangement.  The code includes  an  administration  section.   
Additionally, the code is divided into the  introduction  and  9  chapters.   
Chapters 1, 2, 3, and 4 apply generally;  chapters  5,  6,  and  7  apply  to 
special  occupancies,  special  equipment,  or  other  special  conditions.   
Chapters 5, 6, and 7 supplement or modify the general rules.  Chapters 1 to 4 
apply except  as  amended  by  chapters  5,  6,  and  7  for  the  particular 
conditions.  Chapter 8 covers communications systems and is  not  subject  to 
the requirements of chapters  1  to  7  except  where  the  requirements  are 
specifically referenced in chapter 8.  Chapter 9 consists of tables that  are 
applicable as referenced.  Annexes are not part of the  requirements  of  the 
code but are included for informational purposes only.

  History: 2004 AACS; 2009 MR 19, Eff. Dec. 2, 2009.


R 408.30814  Enforcement.
  Rule 814.  Sections 90.4 and 90.6 of  the  code  are  amended  to  read  as 
follows:
  90.4.  Enforcement.  The code is intended  to  be  suitable  for  mandatory 
application by governmental bodies  that  exercise  legal  jurisdiction  over 
electrical installations, including signaling and  communications  systems.
The enforcing agency shall interpret the rules, decide  on  the  approval  of 
equipment and materials, and grant special permission set forth in the rules.
  By special permission, the enforcing agency may permit alternative  methods 
where equivalent objectives may be achieved by establishing  and  maintaining 
effective safety.
  90.6.  Formal interpretations.  Formal interpretations shall be  issued  in 
accordance with 1972 PA 230, MCL 125.1501 et seq.

  History: 2004 AACS.


R 408.30815  Maintenance of existing wiring.
  Rule 815.  Section 80.18 of the code is added to read as follows:
  80.18.  Maintenance of existing wiring.  Every building, structure, or part 
thereof shall be kept in good electrical repair by the owner.

  History:  1979 AC; 1981 AACS; 2004 AACS.


R 408.30816  Rescinded.

  History:  1979 AC; 1981 AACS; 2004 AACS.


R 408.30817  Disconnection of dangerous electrical equipment.
  Rule 817.  Section 80.18.1 is added to the code to read as follows:
  80.18.1.  Disconnection of dangerous electrical equipment.  If the  use  of 
any electrical equipment is found  imminently  dangerous  to  human  life  or 
property, the enforcing agency may condemn the  equipment  or  disconnect  it 
from its source of electric supply, except that the  enforcing  agency  shall 
not disconnect the service entrance equipment or utility service  drop  wires 
unless the entrance equipment or utility wires  in  themselves  constitute  a 
hazard to life or property.  If the enforcing agency condemns or  disconnects 
dangerous equipment, then the agency shall place a red tag on  the  equipment 
listing the causes for the condemnation  or  disconnection  and  the  penalty 
under the act for the unlawful use of the equipment.  The agency  shall  give 
written notice of the  condemnation  or  disconnection  and  the  causes  for 
condemning or disconnecting the equipment to the owner or the occupant of the 
building, structure, or premises.  A person  shall  not  remove  the  tag  or 
reconnect the electrical equipment to its source of electric supply,  or  use 
or permit the use of electrical current in the  electrical  equipment,  until 
the causes for the condemnation or disconnection are remedied  and  a  permit 
for the electrical repairs of the equipment is obtained  from  the  enforcing 
agency.

  History:  1979 AC; 1981 AACS; 1998-2000 AACS; 2004 AACS.


R 408.30818  Permits and certificates.
  Rule 818.  Sections 80.19.1 of the code  is  amended  and  80.19,  80.19.2, 
80.19.3, 80.19.4, 80.19.5, 80.19.6, 80.19.7, and 80.19.8  are  added  to  the 
code to read as follows:
  80.19.  Permits and certificates.  A person shall not equip a building with 
electrical conductors or equipment or make an alteration of,  change  in,  or 
addition to, electrical conductors or equipment without receiving  a  written 
permit  to  do  the  work  described.   If  the  electrical  installation  or 
alterations  of,  changes  in,  or  addition  to,  electrical  conductors  or 
equipment are found to be in compliance with the provision of the code and if 
the work has  passed  the  inspection  of  the  enforcing  agency,  then  the 
enforcing agency shall, upon the request of the permit  holder  to  whom  the 
permit was issued, issue a certificate of final electrical  inspection.   The 
certificate certifies that the provisions of  the  code  have  been  complied 
with.  This section does not apply to installations that are referred  to  in 
section 7(3)(a), (b), (c), (d), (e), (f), (h), (k), (l), or (o)  of  1956  PA 
217, MCL 338.887.
  80.19.1.  To whom permits are issued.   (1)   A  permit  for  any  type  of 
electrical installation may be secured by 1 of the following:
  (a)  A holder of an electrical contractor license or the qualifying  master 
for the electrical contractor when authorized by the electrical contractor to 
secure a permit.
  (b)  A homeowner who occupies or will occupy a single-family  dwelling  and 
other accessory structures located on the same lot intended for  use  by  the 
homeowner for  which  the  permit  is  obtained  and  who  will  install  the 
electrical equipment as certified by the homeowner on the permit  application 
in accordance with the act.
  (2)  A permit for a fire alarm system may be secured by  the  holder  of  a 
fire  alarm  specialty  contractor  license  or  the  qualifying  fire  alarm 
specialty technician qualifying the  fire  alarm  specialty  contractor  when 
authorized by the fire alarm specialty contractor to secure a permit.
  (3)  A permit for an electrical sign or outline  lighting,  as  defined  in 
section 1b(1) and (2) of 1956 PA 217, MCL 338.881b(1) and (2), may be secured 
by the holder of a sign specialty contractor license or  the  sign  specialty 
technician qualifying the sign specialty contractor when  authorized  by  the 
sign specialty contractor to secure a permit.
  (4)  A permit for  electrical  wiring  associated  with  the  installation, 
removal, alteration, or repair of  a  water  well  pump  on  a  single-family 
dwelling to the first point of attachment in the house from the well, may  be 
secured by a registered pump installer under part 127 of  1978  PA  368,  MCL 
333.12701 to 333.12771.
  (5)  A permit for wiring associated with existing mechanical  and  plumbing 
systems referenced in section 7(3)(i) of 1956 PA 217, MCL 338.887(3)(i),  may 
be secured by the following:
  (a)  A holder of a mechanical contractor license issued in accordance  with 
section 6(3)(a), (b), (d), (e), and (f) of 1984 PA  192,  MCL  338.976(3)(a), 
(b), (d), and (f).
  (b)  A holder of a plumbing contractor license issued  in  accordance  with 
2002 PA 733, MCL 338.3511 to 338.3569.
  80.19.2.  Application for permit.  Each application for a permit, with  the 
required fee, shall be filed with the code official on a form  furnished  for 
that purpose and shall contain a general description of the proposed work and 
its  location.   The  permit  application  shall   contain   all   applicable 
information in accordance with the act and shall include the signature of the 
applicant in compliance with section 80.19.1 of the code.
  80.19.3.  Permit expiration.  If work for which a permit is issued  is  not 
started within 6 months of  the  date  of  permit  issuance  or  if  work  is 
abandoned for a period of 6 months, then the permit shall lapse and cease  to 
be in effect.
  80.19.4.  Uncompleted installation notification.  If a  person  to  whom  a 
permit is issued for the installation and inspection of electrical conductors 
and electrical equipment quits the installation  for  any  reason,  then  the 
person shall notify the enforcing agency.
  80.19.5.   Inspection  and  refunds  for  partial  installation.    If   an 
installation is partially completed, then a permit holder, upon quitting  the 
installation,  shall  notify  the  enforcing  agency  and  shall  request  an 
inspection.  The inspector shall record  the  acceptance  of,  or  violations 
against, the work installed on the permit record according to the findings of 
the inspector.  The enforcing agency shall not grant a refund to  the  permit 
holder  of  the  permit  fee  covering  electrical  equipment  installed  and 
inspected.
  80.19.6.  Owner notification to enforcing agency.  If a permit holder quits 
an installation after the electrical equipment  is  installed  and  fails  to 
notify the enforcing agency, then the building owner or his or her agent  may 
notify the enforcing agency and request  inspection.   Upon  inspection,  the 
enforcing agency shall send the permit holder a notice of a  violation.   The 
owner may then secure another licensed contractor to proceed with the work if 
the new contractor is properly covered by a permit.
  80.19.7.  Transfer of permit.  An electrical permit is not transferable.
  80.19.8.  Fraudulent application for permit.  A permit that  is  issued  in 
violation of the laws of this state or as a result  of  false  or  fraudulent 
information or misinterpretation of conditions is subject  to  revocation  at 
the direction of the enforcing agency.  The enforcing agency shall notify the 
person holding the permit to appear and show cause why the permit should  not 
be revoked.  Failure to appear is sufficient grounds for  revocation  of  the 
permit.

  History:  1979 AC; 1981 AACS; 1991 AACS; 1995 AACS; 1998-2000 AACS; 
2004 AACS; 2007 AACS; 2009 MR 19, Eff. Dec. 2, 2009.


R 408.30819  Plans and specifications.
  Rule 819.  Sections 80.21, 80.21.1 and 80.21.2 are added  to  the  code  to 
read as follows:
  80.21.  Plans and specifications.  An applicant shall submit a detailed set 
of plans and specifications with the application for an electrical permit for 
any wiring or alteration to an  electrical  system  if  the  system  requires 
installation of electrical equipment that has an ampacity of  more  than  400 
amperes for the service or feeder and if  the  calculated  floor  area  in  a 
building is more than 3,500 square feet.  The enforcing  agency  may  request 
plans for projects that include an unusual design.  The  electrical  drawings 
shall include all of the following details:
  (a)  Lighting layout.
  (b)  Circuiting.
  (c)  Switching.
  (d)  Conductor and raceway sizes.
  (e)  Wattage schedule.
  (f)  Service location and riser diagram.
  (g)  Load calculations.
  (h)  A proposed method of construction that is  drawn  with  symbols  of  a 
standard form.
  All conductors are assumed to be copper  unless  otherwise  stated  in  the 
plan.  Specifications, when provided,  shall  also  include  the  information 
listed in this rule.  The selection of suitable  disconnect  and  overcurrent 
devices to provide proper coordination and interrupting capacity for a wiring 
system is the responsibility of the designer.   The  enforcing  agency,  when 
approving electrical plans, does not assume responsibility for the design  or 
for any deviations from any electrical drawings.   The  permit  holder  shall 
ensure that the plans and specifications approved by the enforcing agency, or 
a certified copy  of  the  plans  and  specifications,  where  required,  are 
available on the jobsite for the use of the enforcing agency.
  80.21.1.  Preparation of plans.  An architect or engineer shall prepare, or 
supervise  the  preparation  of,  all  plans  and  specifications   for   new 
construction work or repair, expansion, addition, or modification work.   The 
architect or engineer shall be licensed under 1980 PA  299,  MCL  339.101  to 
339.2919.  The  plans  and  specifications  shall  bear  the  architect's  or 
engineer's signature and seal.
  Note:  For exceptions, see 1980 PA 299, MCL 339.101 to 339.2919.
  80.21.2.  Review of construction documents.   The  enforcing  agency  shall 
review the application, construction documents, and other data  filed  by  an 
applicant for a permit.  If the enforcing agency finds that the proposed work 
conforms to the requirements of the code and related laws and ordinances  and 
that the fees are paid, then the agency shall issue a permit to the applicant.

  History:  1979 AC; 1981 AACS; 1988 AACS; 1991 AACS; 1995 AACS; 
1998-2000 AACS; 2004 AACS; 2007 AACS.


R 408.30820 Representative on jobsite.
  Rule 820.  Sections 80.20 and 80.20.1 are added to  the  code  to  read  as 
follows:
  80.20.  Representative on jobsite.  The enforcing agency reserves the right 
to require a representative of the permit holder to be on  the  job  when  an 
inspection is made.
  80.20.1.  Licensed supervision required.  A person who  is  licensed  under 
1956 PA 217, MCL 338.881 et seq., and who is employed by and  represents  the 
permit holder who is responsible for the  electrical  installation  shall  be 
present at all times when electrical construction is in progress.

  History:  1979 AC; 1981 AACS; 1988 AACS; 1991 AACS; 1995 AACS; 
1998-2000 AACS; 2004 AACS.


R 408.30821  Occupancy of building or structure.
  Rule 821.  Section 80.11 is added to the code to read as follows:
80.11.  Occupancy of building or structure.
  (a)  New construction.  No newly constructed building may  be  occupied  in 
whole or in part in violation of the provisions of the code.
  (b)  Existing buildings.  Existing buildings that are occupied at the  time 
of adoption of the code shall be permitted to  remain  in  use  provided  the 
following conditions apply:
  (1)  The occupancy classification remains unchanged.
  (2)  There exists no condition deemed hazardous to life  or  property  that 
would constitute an imminent danger.

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


R 408.30822  Inspections.
  Rule 822.  Sections 80.22, 80.22.1 and 80.22.2 are added  to  the  code  to 
read as follows:
  80.22.  Scheduling inspection.  An enforcing agency shall be given not less 
than 24 hours' notice to inspect electrical equipment.  An  enforcing  agency 
shall perform the inspection within a reasonable period  of  time  after  the 
request for inspection is made.
  80.22.1.  Inspection notice.  Only the enforcing agency shall post a notice 
of inspection at, or remove a notice from, the jobsite.  The enforcing agency 
shall maintain a record of all inspections.
  80.22.2.  Concealing electrical installation.  A person shall not  conceal, 
or cause to be concealed, any conductors and equipment before  the  equipment 
is approved by the enforcing agency.

  History:  1979 AC; 1981 AACS; 1995 AACS; 1998-2000 AACS; 2004 AACS.


R 408.30823  Connection to electricity supply.
  Rule 823.  Section 80.25 added to the code to read as follows:
  80.25.  Connection to electricity supply.  Except where work  is  performed 
under an annual permit or except as otherwise provided in the code, a person, 
firm, or corporation shall not make connection to a supply of electricity  or 
to supply electricity to any electric  equipment  installation  for  which  a 
permit  is  required  or  that  has  been  disconnected  or  ordered  to   be 
disconnected.

  History:  1979 AC; 1981 AACS; 1991 AACS; 2004 AACS; 2007 AACS.


R 408.30824  Fees.
  Rule 824.  Section 80.24 of the code is added to read as follows:
  80.24.  Fees.  The fees prescribed by  section  22  of  1972  PA  230,  MCL 
125.1522, shall be paid to the enforcing agency of the jurisdiction before  a 
permit to begin work for new construction, alteration,  removal,  demolition, 
or other building operation may be issued.  In addition, an  amendment  to  a 
permit necessitating an additional  fee  shall  not  be  approved  until  the 
additional fee is paid.

  History:  1979 AC; 1981 AACS; 2004 AACS.


R 408.30825   Rescinded.

  History:  1979 AC; 1981 AACS; 1991 AACS; 1995 AACS; 1998-2000 AACS.


R 408.30826  Violations.
  Rule 826.  Section 80.23 is added to the code to read as follows:
  80.23.  Violations.  If it is found that any electrical equipment does  not 
conform to the provisions of  the  code,  then  the  enforcing  agency  shall 
notify, in writing, the person  who  installs,  or  who  is  responsible  for 
installing, the electrical equipment, in accordance  with  the  act,  of  the 
defect, misuse, or violation.  Violations and penalties shall be as specified 
in the act.

  History:  1979 AC; 1981 AACS; 1991 AACS; 1998-2000 AACS; 2004 AACS; 
2007 AACS.



R 408.30827  Service equipment.
  Rule 827.  Section 80.26 is added to the code to read as follows:
  80.26.  Service equipment.  The  enforcing  agency  shall  approve  service 
equipment installed, altered, or repaired before the load side of  the  meter 
is energized.

  History:  1991 AACS; 1995 AACS; 1998-2000 AACS; 2004 AACS.


R 408.30828  Definitions.
  Rule 828.  The definitions of authority having jurisdiction, dwelling unit, 
dwelling, 1-family, dwelling, 2-family, and dwelling, multifamily in  article 
100 of the code are amended and the  definitions  of  act,  chief  electrical 
inspector, code official, electrical  inspector,  and  enforcing  agency  are 
added to article 100 of the code to read as follows:
"Act" means  1972  PA  230,  MCL  125.1501  to  125.1531  and  known  as  the 
Stille-DeRossett-Hale single state construction code act.
  "Authority having jurisdiction" where used in the code means the  enforcing 
agency.
  "Dwelling unit" means a single unit providing complete  independent  living 
facilities for 1 or more persons, including permanent provisions for  living, 
sleeping, eating, cooking, and sanitation.
  "Dwelling, 1-family" means a building that consists solely  of  1  dwelling 
unit complying with the provisions of the Michigan residential code.
  "Dwelling, 2-family" means a building that consists solely  of  2  dwelling 
units complying with the provisions of the Michigan residential code.
  "Dwelling, multifamily" means a building that contains 3 or  more  dwelling 
units.  Residential occupancies containing more than 2 dwelling  units  where 
the occupants are  primarily  permanent  in  nature,  including  all  of  the 
following:
  1.  Apartment houses.
  2.  Boarding housing, not transient.
  3.  Convents.
  4.  Dormitories.
  5.  Fraternities and sororities.
  6.  Monasteries.
  "Chief electrical inspector" where used in the code means the code official.
  "Code official"  means  a  person  who  is  appointed  and  employed  by  a 
governmental  subdivision  who  is  charged  with  the   administration   and 
enforcement of the state code or codes, and who is registered  in  accordance 
with 1986 PA 54, MCL 338.2301 to 338.2313.
  "Electrical inspector" where used in the code means the code official.
  "Enforcing agency" means the enforcing agency, in accordance with the  act, 
which is responsible for administration and enforcement of the code within  a 
governmental subdivision, except for the purposes of the act.

  History: 2004 AACS; 2007 AACS.


R 408.30829  Approval
  Rule 829.  Section 110.2 of the code is amended to read as follows:
  110.2.  Approval.  Materials, equipment, and devices shall  be  constructed 
and installed in accordance with approvals granted under section 21  of  1972 
PA 230, MCL 125.1521, or by the code official.

  History: 2004 AACS.


R  408.30830   Rescinded.

  History:  1979 AC; 1998-2000 AACS.


R 408.30831  Rescinded.

  History:  1981 AACS; 1988 AACS; 1997 AACS; 1998-2000 AACS; 2004 AACS.


R 408.30832   Rescinded.

  History:  1981 AACS; 1985 AACS; 1995 AACS; 1997 AACS. 


R 408.30834  Maximum number of disconnects.
  Rule 834.  Section 230.71(A) of the code is amended to read as follows:
  230.71(A).  General.  The service  disconnecting  means  for  each  service 
permitted by section 230.2 of the code, or for each set  of  service-entrance 
conductors permitted by 
section 230.40, exception nos. 1, 3, or 4, of the code, shall consist of  not 
more than 6 switches or sets of circuit breakers, or  a  combination  of  not 
more than 6 switches and sets  of  circuit  breakers,  mounted  in  a  single 
enclosure, in a group of separate  enclosures,  in  a  switchboard  or  on  a 
switchboard.  There shall be not more than 6 sets of disconnects per  service 
grouped in any 1 location.
For the purpose of this section, disconnecting means  installed  as  part  of 
listed equipment and used solely for the following, shall not be considered a 
service disconnecting means:
  (1)  Power monitoring equipment.
  (2)  Surge-protective device or devices.
  (3)  Control circuit of the ground-fault protection system.
  (4)  Power-operable service disconnecting means.

  History: 2007 AACS; 2009 MR 19, Eff. Dec. 2, 2009.


R 408.30835  Number of service-entrance conductor sets.
  Rule 835.  Section 230.40 of the code is amended to read as follows:
  230.40.  Number of Service-Entrance Conductor Sets.  Each service  drop  or 
lateral shall supply 1 set of service-entrance conductors.
Exception 1:  A building with more than 1 occupancy  shall  be  permitted  to 
have 1 set of service-entrance conductors for each  service,  as  defined  in 
section 230.2 of the code, run to each occupancy or group of occupancies.
Exception 2:  Where 2 to 6 service disconnecting means in separate enclosures 
are grouped at 1 location and supply separate loads from 1  service  drop  or 
lateral, 1 set of service-entrance conductors may supply each or several such 
service equipment enclosures.
Exception 3:  A 2-family dwelling or a multifamily dwelling may have 1 set of 
service-entrance conductors installed  to  supply  the  circuits  covered  in 
section 210.25 of the code.
Exception 4:  One set of service-entrance conductors connected to the  supply 
side of the normal service disconnecting means may  supply  each  or  several 
systems covered by section 230.82(4) or section 230.82(5) of the code.

  History:  1985 AACS; 1988 AACS; 1997 AACS; 1998-2000 AACS; 2004 AACS; 
2007 AACS; 2009 MR 19, Eff. Dec. 2, 2009.


R 408.30837  Rescinded.

  History:  1985 AACS; 1988 AACS; 1997 AACS; 1998-2000 AACS; 2004 AACS.


R 408.30838  NFPA code; adoption by reference.
  Rule 838.  Sections 700.2 and 701.3 of the code  are  amended  to  read  as 
follows:
  700.2.   Emergency  systems.   Emergency  systems  shall  be  installed  in 
accordance with NFPA 110 and NFPA 111, 2005 editions, which  are  adopted  by 
reference in these rules.
  701.3.  Legally required standby systems.  Legally required standby systems 
shall be installed in accordance with NFPA 110 and NFPA 111,  2005  editions, 
which are adopted by reference in these rules.  

  History:  1986 AACS; 1988 AACS; 1997 AACS; 2009 MR 19, Eff. Dec. 2, 2009.


R 408.30839  Rescinded.

  History:  1985 AACS; 1988 AACS; 1997 AACS; 1998-2000 AACS.


R 408.30843  Rescinded.

  History:  1985 AACS; 1988 AACS; 1991 AACS; 1998-2000 AACS; 2004 AACS.


R 408.30865  Unsupported raceways.
  Rule 865.  Section 342.30(C) of the code is amended to read as follows:
  342.30(C).  Unsupported raceways.   Type  IMC  shall  be  permitted  to  be 
unsupported where the raceway is not more than 900  millimeters  (36  inches) 
long and remains in unbroken lengths (without coupling).  Such raceways shall 
terminate in an outlet box, junction  box,  device  box,  cabinet,  or  other 
termination at each end of the raceway.

  History:  1979 AC; 1980 AACS; 1988 AACS; 1997 AACS; 2009 MR 19, Eff. Dec. 2
2009.


R 408.30866  Rescinded.

  History:  1988 AACS; 1991 AACS; 1998-2000 AACS; 2004 AACS.


R 408.30867  Grounding and bonding of flexible metal conduit.
  Rule 867.  Section 348.60 of the code is amended to read as follows:
  348.60.  An equipment grounding  conductor  or  equipment  bonding  jumpers 
shall be installed.  Equipment grounding conductors  shall  be  installed  in 
accordance with section 250.134(B) of the code.   Equipment  bonding  jumpers 
shall be installed in accordance with section 250.102 of the code.

  History:  1988 AACS; 1998-2000 AACS; 2007 AACS.


R 408.30868  Grounding and bonding of liquidtight flexible metal conduit.
  Rule 868.  Section 350.60 of the code is amended to read as follows:
  350.60.  An equipment grounding  conductor  or  equipment  bonding  jumpers 
shall be installed.  Equipment grounding conductors  shall  be  installed  in 
accordance with section 250.134(B) of the code.   Equipment  bonding  jumpers 
shall be installed in accordance with section 250.102 of the code.

  History:  1988 AACS; 1998-2000 AACS; 2004 AACS; 2007 AACS.


R 408.30869  Grounding conductors.
  Rule 869.  Section 250.118 of the code is amended to read as follows:
  250.118.  Types of equipment grounding conductors.  The equipment grounding 
conductor run with or enclosing the circuit conductors shall be 1 or more  or 
a combination of the following:
  (1)  A copper, aluminum, or copper-clad aluminum conductor.  This conductor 
shall be solid or stranded; insulated, covered, or bare; and, in the form  of 
a wire or a busbar of any shape.
  (2)  Rigid metal conduit.
  (3)  Intermediate metal conduit.
  (4)  Electrical metallic tubing.
  (5)  Flexible metallic tubing where the  tubing  is  terminated  in  listed 
fittings and meeting both of the following conditions:
  (a)  The circuit conductors  contained  in  the  tubing  are  protected  by 
overcurrent devices rated at 20 amperes or less.
  (b)  The length of flexible metallic tubing in the ground return path  does 
not exceed 1.8m (6 feet).
  (6)  Armor of type AC cable as provided in section 320.108 of the code.
  (7)  The copper sheath of mineral-insulated, metal-sheathed cable.
  (8)  Type MC cable where listed and identified for grounding in  accordance 
with both of the following:
  (a)  The combined metallic sheath and grounding  conductor  of  interlocked 
metal tape-type MC cable.
  (b)  The metallic sheath or the  combined  metallic  sheath  and  grounding 
conductors of the smooth or corrugated tube type MC cable.
  (9)  Cable trays as permitted by sections 392.3(c) and 392.7 of the code.
  (10)  Cablebus framework as permitted by section 370.3 of the code.
  (11)  Other  listed  electrically  continuous  metal  raceways  and  listed 
auxiliary gutters.
  (12)  Surface metal raceways listed for grounding.

  History:  1988 AACS; 1991 AACS; 1998-2000 AACS; 2004 AACS; 2007 AACS; 2009 
MR 19, Eff. Dec. 2, 2009.


R 408.30870  Unsupported raceways.
  Rule 870.  Section 344.30(C) of the code is amended to read as follows:
  344.30(C).  Unsupported raceways.   Type  RMC  shall  be  permitted  to  be 
unsupported where the raceway is not more than 900  millimeters  (36  inches) 
long and remains in unbroken lengths (without coupling).  Such raceways shall 
terminate in an outlet box, junction  box,  device  box,  cabinet,  or  other 
termination at each end of the raceway.

  History:  1988 AACS; 1991 AACS; 1997 AACS; 2009 MR 19, Eff. Dec. 2, 2009.


R 408.30871  Unsupported raceways.
  Rule 871.  Section 352.30(C) of the code is amended to read as follows:
  352.30(C).  Unsupported raceways.   Type  PVC  shall  be  permitted  to  be 
unsupported where the raceway is not more than 900  millimeters  (36  inches) 
long and remains in unbroken lengths (without coupling).  Such raceways shall 
terminate in an outlet box, junction  box,  device  box,  cabinet,  or  other 
termination at each end of the raceway.

  History:  1991 AACS; 1995 AACS; 1998-2000 AACS; 2009 MR 19, Eff. Dec. 2, 
2009.


R 408.30872  Unsupported raceways.
  Rule 872.  Section 355.30(C) of the code is amended to read as follows:
  355.30(C).  Unsupported raceways.  Type  RTRC  shall  be  permitted  to  be 
unsupported where the raceway is not more than 900  millimeters  (36  inches) 
long and remains in unbroken lengths (without coupling).  Such raceways shall 
terminate in an outlet box, junction  box,  device  box,  cabinet,  or  other 
termination at each end of the raceway.

  History:  1991 AACS; 1995 AACS; 1997 AACS; 2009 MR 19, Eff. Dec. 2, 2009.


R 408.30873  Uses permitted.
  Rule 873  Section 334.10 of the code is amended to read as follows:
  334.10.  Uses Permitted.  Type NM, type NMC, and type  NMS  cables  may  be 
used in the following:
  (1)  One- and 2-family dwellings.
  (2)  Multifamily dwellings except as prohibited in section  334.12  of  the 
code.
  (3)  Other structures except as prohibited in section 334.12 of the code.
In structures exceeding 1 floor above grade, cables shall be concealed within 
walls, floors, or ceilings that provide a thermal barrier  of  material  that 
has at least a 15-minute finish rating as  identified  in  listings  of  fire 
rated assemblies in accordance with the Michigan building code.
  (4)  Cable trays in structures permitted to be types III, IV,  or  V  where 
the cables are identified for the use.

  History:  1991 AACS; 1995 AACS; 1998-2000 AACS; 2007 AACS.


R 408.30880  Unsupported raceways.
  Rule 880.  Section 358.30(C) of the code is amended to read as follows:
  358.30(C).  Unsupported raceways.   Type  EMT  shall  be  permitted  to  be 
unsupported where the raceway is not more than 900  millimeters  (36  inches) 
long and remains in unbroken lengths (without coupling).  Such raceways shall 
terminate in an outlet box, junction  box,  device  box,  cabinet,  or  other 
termination at each end of the raceway.

  History:  1979 AC; 1980 AACS; 1997 AACS; 2009 MR 19, Eff. Dec. 2, 2009.