DEPARTMENT OF LICENSING AND REGULATORY AFFAIRS
DIRECTOR’S OFFICE
CONSTRUCTION CODE
Filed with the secretary of state on
These rules become effective 120 days after filing with the secretary of state.
(By authority conferred on the director of the department of licensing and regulatory affairs by section 4 of the Stille-DeRossett-Hale single state construction code act 1972 PA 230, MCL 125.1504, and Executive Reorganization Order Nos. 1996-2, 2003-1, 2008-4, 2011-4, and 2017-1, MCL 445.2001, 445.2011, 445.2025, 445.2030, and 339.3102)
R 408.30801, R 408.30808, R 408.30810, R 408.30818, R 408.30819, R 408.30823, R 408.30838, and R 408.30873 of the Michigan Administrative Code are amended, R 408.30870 is added, and R 408.30826 and R 408.30828 are rescinded, as follows:
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 2017 2023 second
printing
edition, including
TIA 70-23-1 to 70-23-13, Errata 70-23-1 to 70-23-6 and Annex H, except
sections
80.2,
80.5, 80.15, 80.21, 80.23, 80.27, 80.29, 80.31, 80.33, 80.35, and 90.6, and 547.1
to 547.10, 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) All
references to the ANSI/ASME A17.1-2013, 2016 safety code for
elevators and escalators mean the Michigan elevator code and all references to
the national electrical code mean the Michigan electrical code.
(3) NFPA 110,
standard for emergency and standby power systems, 2013 2019 edition and NFPA
111, standard on stored electrical energy emergency and standby power systems, 2013
2019
edition,
are adopted by reference in these rules.
(4) The codes
are available for inspection at the Lansing office of the Michigan dDepartment of lLicensing and rRegulatory aAffairs, bBureau of cConstruction cCodes, 611 West Ottawa
Street, First Floor Ottawa Building, Lansing, Michigan 48933.
(5) The National
Electrical Code, NFPA 110 and NFPA 111 may be purchased from the National Fire
Protection Association, 1 Batterymarch Park, Quincy, Massachusetts 02269 02169, or through the
bureau’s website at www.michigan.gov/bcc, at a cost as of the time of adoption
of these rules of $98.00, $47.50, $153.00 for the National Electrical Code, $149.00
for the NFPA 110, and $149.00 for the
NFPA 111
$47.50 each, respectively.
R 408.30808 Scope.
Rule 808. Sections
Section 80.1 is amended,
and 80.1.1, is added to the code to read as follows:
80.1 Scope. The following are covered:
(1) The inspection of electrical installations as covered by 90.2.
(2) The review of construction plans, drawings, and specifications for electrical systems.
(3) The design, alteration, modification, construction, maintenance, and testing of electrical systems and equipment.
(4) The regulation and control of electrical installations at special events, including, but not limited to, exhibits, trade shows, amusement parks, and other similar special occupancies.
80.1.1.
Severability. If a section, subsection, sentence, clause, or phrase of the
code is, for any reason, held to be unconstitutional, this decision shall not
affect the validity of the remaining portions of the code.
R 408.30810 Authority.
Rule 810. Section 80.13 is added to the code to read as follows:
80.13. Authority. Where used in this article, the term authority having jurisdiction
shall include the chief
electrical inspector or other individuals designated by the
governing body. This code shall be administered and enforced by the authority having
jurisdiction designated by the governing authority as follows:
(1) Disconnection. When the use of any
electrical equipment or its installations is found to be dangerous to human
life or property, the authority having jurisdiction may have the premises
disconnected from its source of electric supply., as established
by the board. When this equipment or installation has been condemned or
disconnected, a notice shall be placed on the equipment or installation listing
the causes for the condemnation, or the disconnection, or both, and the
penalty for the unlawful use of the equipment or installation. Written notice
of this condemnation or disconnection and the causes of it shall be given
within 24 hours to the owners, or the occupant, or both, of the
building, structure, or premises. It is unlawful for any person an individual to remove this
notice, to reconnect the electrical equipment to its source of electric supply,
or to use or permit to be used electric power in any electrical
equipment until the causes for the condemnation or disconnection have been
remedied to the satisfaction of the inspection authorities.
(2) Delegate authority. The authority having jurisdiction may delegate to other qualified individuals the powers as necessary for the proper administration and enforcement of this code.
(3) Police, fire, and other
enforcement agencies may render necessary assistance in the enforcement of this
code when requested to do so by the authority having jurisdiction.
(4) The authority having jurisdiction
may order any person or persons to remove or remedy the dangerous or hazardous
condition or conditions or equipment. Any person or persons who fail to comply
with this order are in violation of this code.
(5) Where the authority having
jurisdiction deems that conditions hazardous to life and property exist, he or
she may require that the hazardous conditions in violation of this code be
corrected.
(6) Persons shall not use a badge,
uniform, or other credentials to impersonate the authority having jurisdiction.
(7) The authority having jurisdiction
may require plans and specifications to ensure compliance with this code.
(8) Whenever any installation is
subject to inspection prior to use is covered or concealed without having first
been inspected, the authority having jurisdiction may require that this work be
exposed for inspection. Neither the code official nor the jurisdiction is
liable for expense entailed in the removal or replacement of any material
required to allow inspection. The authority having jurisdiction shall be
notified when the installation is ready for inspections.
R 408.30818 Permits
and certificates.
Rule 818.
Section 80.19, is added to the code to read as follows:
80.19. Permits
and approvals. Permits and approvals shall conform to subdivisions (a) to (e)
(g),
as follows:
(a) Transfer of permits. Permits shall not be transferable.
(a)(b) Application.
Posting
of permits.
A copy of the permit shall be posted or otherwise readily accessible at each
work site.
or
carried by the permit holder as specified by the authority having jurisdiction.
(b) (c) Permit not
required. A permit is not required for all of the following: Issuance of
Permits. The authority having jurisdiction shall be authorized to establish
and issue permits, certificates, notices, and approvals, or orders pertaining
to electrical safety hazards, except that no permit shall last longer than 180
days, or be required to execute any of the classes of electrical work specified
in the following:
(1) Lamps and cord connections. Installation or replacement of equipment such as lamps and of electric utilization equipment approved for connection to suitable permanently installed receptacles.
(2) Minor repair
work. Replacement of flush or snap switches, fuses, lamp sockets, and
receptacles, and other minor maintenance and repair work, such as replacing
worn cords and tightening connections on a wiring device and minor repair work, as that term is defined in section 703 of the skilled trades
regulation act, 2016 PA 407, MCL 339.5101 to 339.6133.339.5703.
(3) Electrical manufacturing. The process of manufacturing, testing, servicing, or repairing electrical equipment or apparatus.
(4) Statute exemptions. Installations that are referred to in section 737(3)(a), (b), (c), (d), (f), (h), (l), and (m) of the skilled trades regulations act, 2016 PA 407, MCL 339.5737.
(d) Expiration. Permits shall expire 180 days after issuance and are extended 180 days from the last inspection date.
(c)(e) Annual permits.
In lieu of an individual permit for each installation or alteration, an annual
permit shall, upon on application, be issued to any person an individual, firm, or
corporation regularly employing 1 or more employees for the installation,
alteration, and maintenance of electrical equipment in or on buildings or
premises owned or occupied by the applicant for the permit. Upon On application, an
electrical contractor as an agent for the owner or tenant shall be issued an
annual permit. The applicant shall keep records of all work done, and the
records shall be transmitted periodically to the electrical inspector.
(d)(f) Inspection and
approvals.
(1) Inspection notification. Upon On the completion of
any an installation of
electrical equipment that has been made under a permit, the person individual, firm, or
corporation making the installation shall notify the electrical inspector
having jurisdiction.
(2) Approvals. Where the
inspector finds the installation to be in conformity with the code, state
statutes, rules, and, if
applicable, local ordinances, the inspector shall issue to the person individual, firm, or
corporation making the installation a final approval, or certificate of
approval provided payment has been made, which authorizes the connection into
the supply of electricity.
(3) Concealment. When any a portion of the
electrical installation within the jurisdiction of an electrical inspector is
to be hidden from view by the permanent placement of parts of the building, the
person individual, firm, or corporation
installing the equipment shall notify the electrical inspector, and the
equipment shall not be concealed until it has been approved by the electrical
inspector. Neither the The code official nor and the jurisdiction
shall not be liable for
expense entailed in the removal or replacement of any material required
to allow inspection.
(e)(g) Applications and
extensions. The authority having jurisdiction may grant 1one 180-day extension
of the original permit time period of 180 days, upon presentation of the
permittee of a satisfactory reason for failure to start or complete the work or
activity authorized by the permit.
R 408.30819 Plans and specifications.
Rule 819.
Sections 80.21, 80.21.1, and 80.21.2, and 80.21.3 are added to
the code to read as follows:
80.21. Plans
and specifications
Plans required. 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, at 1,000 volts or less, 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
Plans and specifications shall conform to the following:
(a) Lighting layout.
(b) Circuiting.
(c) Switching.
(d) Conductor and raceway sizes.
(e) Wattage schedule.
(f) Service location and riser diagram.
(g) Load calculations and available fault current 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. Application
and permits Plan
revisions.
Work shall be installed pursuant to the code and approved construction
documents, and any changes made during construction that are not in
compliance with the approved construction documents shall be resubmitted for
approval as an amended set of construction documents.
80.21.2
Previous approvals. This code shall not require changes in the construction
documents, construction or designated occupancy of a structure for which a
lawful permit has been previously issued or otherwise lawfully authorized, and
the construction of which has been pursued in good faith within 180 days after
the effective date of this code and has not been abandoned.
80.21.32. Information on
construction documents. Construction documents shall be dimensioned and drawn on upon
suitable material. Electronic media documents may be submitted when approved
by the enforcing agency. Construction documents shall be of sufficient clarity
to indicate the location, nature, and extent of the work proposed and show in
detail that it will conform to the provisions of this code and relevant laws,
ordinances, rules, and regulations as determined by the enforcing agency.
R 408.30823 Connection to electricity supply.
Rule 823. Section 80.25 is amended to the code to read as follows:
80.25. Connection to electricity supply. Connections to the electric supply shall conform to subdivisions (a) and (b).
(a) Supply electricity. Except where work is
done under an annual permit and except as otherwise provided in section 80.25,
it is unlawful for any person an individual, firm, or
corporation to make connection to a supply of electricity or to supply
electricity to any electrical equipment installation for which a permit
is required or that has been disconnected or ordered to be disconnected.
(b) Utility emergency connections. The governing utility may reconnect the electrical service,
prior to before approval by the enforcing agency, following emergency repairs performed by an electrical
contractor licensed pursuant to article 7 of the skilled trades
regulation act, 2016 PA 407, MCL 339.5701 to 339.5739. The electrical
contractor shall secure a permit by the next business day after the work is
completed. This requirement is not applicable to new service connections, upgrades,
structural fires, or other planned modifications.
R408.30826
Violations.
Rescinded.
Rule 826.
Section 80.23 is amended to the code to read as follows:
80.23.
Violations. Whenever the authority having jurisdiction determines that there
are
violations of this code, a written notice shall be issued to the permit holder
to confirm
such findings. Notice of
violation shall be sent to the permit holder in writing.
R 408.30828 Definitions.
Rescinded.
Rule 828. The
definition of is 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.
R 408.30838 NFPA code; adoption by reference.
Rule 838. Sections 700.9 and 701.9 of the code are amended to read as follows:
700.9. Installation.
Emergency systems shall be installed pursuant to NFPA 110 and NFPA 111, 2013
2019
editions,
which are adopted by reference in R 408.30801 these rules.
701.9. Installation.
Legally required standby systems shall be installed pursuant to NFPA 110 and
NFPA 111, 2013 2019 editions, which
are adopted by reference in R 408.30801 these rules.
R 408.30870 NFPA code; adoption by reference.
Rule 870 Section 230.85 is added to the code to read as follows:
230.85 Emergency disconnects. For 1- and 2-family dwelling units, an emergency disconnecting means shall be installed.
(A) General.
(1) Location. The disconnecting means shall be installed in a readily accessible outdoor location on or within sight of the dwelling unit.
Exception: Where the requirements of section 225.41 are met, this section shall not apply.
(2) Rating. The disconnecting means shall have a short-circuit current rating equal to or greater than the available fault current.
(3) Grouping. If more than 1 disconnecting means are provided, they shall be grouped.
(B) Disconnects. Each disconnect shall be a service disconnect.
(C) Replacement. Where service equipment is replaced, all of the requirements of this section shall apply.
Exception: Where only meter sockets, service entrance conductors, or related raceways and fittings are replaced, the requirements of this section shall not apply.
(D) Identification of other isolation disconnects. Where equipment for isolation of other energy source systems is not located adjacent to the emergency disconnect required by this section, a plaque or directory identifying the location of all equipment for isolation of other energy sources shall be located adjacent to the disconnecting means required by this section.
(E) Marking.
(1) Marking text. The service disconnecting means shall be marked as follows:
“EMERGENCY DISCONNECT, SERVICE DISCONNECT”.
R 408.30873 Uses permitted.
Rule 873. Sections 334.10 and 334.12(A) of the code are amended to read as follows:
334.10. Uses Permitted. Type NM,
and type NMC, and
type NMS cables may be used in the following, except as prohibited in
section 334.12:
(1) One- and 2-family dwellings and
their attached or detached garages, and their storage buildings.
(2) Multifamily dwellings and their detached garages.
(3) In other 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 not less than a 15-minute
finish rating as identified in listings of fire rated assemblies pursuant to
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.
334.12(A). Uses
not permitted. Types NM, and NMC, and NMS cable shall not
be permitted as follows:
(1) In a any
dwelling or structure not specifically permitted in section 334.10(1), (2) and
(3).
(2) Exposed in dropped or suspended ceilings in other than 1- and 2-family and multifamily dwellings.
(3) As service-entrance cable.
(4) In commercial garages having hazardous or classified locations as defined in section 511.3.
(5) In theaters and similar locations, except where permitted in section 518.4(B).
(6) In motion picture studios.
(7) In storage battery rooms.
(8) In hoistways or on elevators or escalators.
(9) Embedded in poured cement, concrete, or aggregate.
(10) In hazardous or classified locations, except where specifically permitted by other articles in this code.