DEPARTMENT OF LICENSING AND REGULATORY AFFAIRS  
DIRECTOR'S OFFICE  
CONSTRUCTION CODE  
(By authority conferred on the director of the department of licensing and regulatory  
affairs by section 4 of 1972 PA 230, MCL 125.1504, and Executive Reorganization  
Order Nos. 2003-1, 2008-4 and 2011-4, MCL 445.2011, 445.2025, and 445.2030)  
PART 4. BUILDING CODE  
R 408.30401 Applicable code.  
Rule 401. The provisions of the international building code, 2015 edition, including  
appendices F, G, and H, except for sections 104.8, 109.2 to 109.6, 114.3, 415.9.1.2 to  
415.9.1.9, 415.7.4, 423.3, 423.4, 903.2.8.3.1, 903.2.8.3.2, 903.2.8.4, 2902 to 2902.6,  
Table 2902.1, 3005.5, the definition of “agricultural building” in section 202, the  
definition of "recreational vehicle" in Appendix G, and, IECC-2015, IEBC-2015, IMC-  
2015, IPC-2015, IPSDC-2015, NFPA 70-2014, listed in chapter 35, govern the  
construction, alteration, relocation, demolition, use, and occupancy of buildings and  
structures, and, with exceptions noted, the international building code is adopted by  
reference in these rules. All references to the International Building Code, International  
Residential Code, International Energy Conservation Code, National Electrical Code,  
International Existing Building Code, International Mechanical Code, and International  
Plumbing Code mean the Michigan Building Code, Michigan Residential Code,  
Michigan Energy Code, Michigan Electrical Code, Michigan Rehabilitation Code for  
Existing Buildings, Michigan Mechanical Code, and Michigan Plumbing Code  
respectively. The code is available for inspection at the Michigan Department of  
Licensing and Regulatory Affairs, Bureau of Construction Codes, 611 W. Ottawa St., 1st  
Floor Ottawa Building Lansing, MI 48933. The code may be purchased from the  
International Code Council, through the bureau’s website at www.michigan.gov/bcc, at a  
cost as of the time of adoption of these amendatory rules of $128.00.  
History: 1979 AC; 1981 AACS; 1985 AACS; 1988 AACS; 1992 AACS; 1995 AACS; 1998  
AACS; 2001 AACS; 2004 AACS; 2008 AACS; 2010 AACS; 2014 AACS; 2016 AACS; 2017 AACS.  
R 408.30401a Adult foster care facilities and child care organizations.  
Rule 401a. (1) Promulgation authority for fire safety standards for facilities and  
camps licensed or registered under the adult foster care facility licensing act, 1979 PA  
218, being MCL 400.701 et seq., and the child care organizations act, 1973 PA 116,  
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being MCL 722.101 et seq., is vested in the department of human services and the  
bureau of fire services.  
(2) Until amended or rescinded by the promulgating authority, the 2003  
Michigan building code provisions relative to fire safety standards for facilities and  
camps licensed or registered under the adult foster care facility licensing act, 1979 PA  
218, being MCL 400.701 et seq., and the child care organizations act, 1973 PA 116,  
being MCL 722.101 et seq., remain in effect.  
History:2008 AACS.  
R 408.30402 Title.  
Rule 402. Section 101.1 of the code is amended to read as follows:  
101.1. Title. These rules shall be known as the Michigan building code,  
hereinafter referred to as "the code."  
History: 1981 AACS; 1995 AACS; 1998-2000 AACS; 2001 AACS.  
R 408.30403 Residential group R-3.  
Rule 403. Sections 310.5 310.5.1, 903.3.8.1, and 903.3.8.5 are amended and  
903.2.8.3 is added to the code to read as follows:  
310.5. Residential group R-3. Residential occupancies where the occupants are  
primarily permanent in nature and not classified as group R-1, R-2, R-4, or I, including  
any of the following:  
(a) Adult foster care family homes or adult foster care small group homes licensed  
per the adult foster care facility licensing act, 1979 PA 218, MCL 400.701 to 400.737,  
that provide accommodations for 6 or fewer persons receiving care.  
(b) Buildings that do not contain more than 2 dwelling units.  
(c) Boarding houses (nontransient) with 16 or fewer occupants.  
(d) Boarding houses (transient) with 10 or fewer occupants.  
(e) Congregate living facilities (nontransient) with 16 or fewer occupants.  
(f) Congregate living facilities (transient) with 10 or fewer occupants.  
(g) Foster family homes licensed under the child care organizations act, 1973 PA  
116, MCL 722.111 to 722.127a, that provide care for not more than 4 minor children.  
(h) Foster care family group homes licensed under the child care organizations act,  
1973 PA 116, MCL 722.111 to 722.127a, that provide care for more than 4 but fewer  
than 7 minor children.  
310.5.1. Care facilities within a dwelling. Care facilities that are located within a  
single- family dwelling may comply with the Michigan residential code if 1 of the  
following conditions is met:  
(a) Adult foster care family homes or adult foster care small group homes for 6 or  
fewer persons receiving care that are within a single-family dwelling and licensed in  
accordance with the adult foster care facility licensing act, 1979 PA 218, MCL 400.701  
to 400.737.  
(b) Family child care homes licensed under the child care organizations act, 1973  
PA 116, MCL 722.111 to 722.127a, that provide care for fewer than 7 minor children.  
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(c) Group child care homes licensed under the child care organizations act, 1973 PA  
116, MCL 722.111 to 722.127a, that provide care for more than 6 but not more than 12  
minor children.  
(d) Foster family homes licensed per the child care organizations act, 1973 PA 116,  
MCL 722.111 to 722.127a, that provide care for not more than 4 minor children.  
(e) Foster care family group homes licensed per the child care organizations act,  
1973 PA 116, MCL 722.111 to 722.127a, that provide care for more than 4 but fewer  
than 7 minor children.  
903.2.8.3. Child care organizations. An automatic sprinkler system installed in  
accordance with section 903.3.1.3 shall be permitted in child care organizations that are  
within a single-family dwelling and licensed in accordance with the child care  
organizations act, 1973 PA 116, MCL 722.111 to 722.127a, as follows:  
(a) Foster family homes licensed under the child care organizations act, 1973 PA  
116, MCL 722.111 to 722.127a, that provide care for more than 4 but fewer than 7 minor  
children.  
(b) Foster care family group homes licensed under the child care organizations act,  
1973 PA 116, MCL 722.111 to 722.127a, that provide care for more than 4 but fewer  
than 7 minor children.  
(c) Family child care homes licensed under the child care organizations act, 1973  
PA 116, MCL 722.111 to 722.127a, that provide care for fewer than 7 minor children.  
(d) Group child care homes licensed under the child care organizations act, 1973 PA  
116, MCL 722.111 to 722.127a, that provide care for more than 6 but not more than 12  
minor children.  
903.3.8.1. Number of sprinklers. Limited area sprinkler systems shall not exceed  
20 sprinklers.  
903.3.8.5. Calculations. Hydraulic calculations in accordance with NFPA 13 shall  
be provided to demonstrate that the available water flow and pressure are adequate to  
supply all sprinklers installed with discharge densities corresponding to the hazard  
classification.  
History: 1981 AACS; 1985 AACS; 1988 AACS; 1989 AACS; 1995 AACS; 1998-2000 AACS;  
2014 AACS; 2016 AACS.  
R 408.30403a Rescinded.  
History: 1985 AACS; 1992 AACS; 1995 AACS.  
R 408.30404 Duties and powers of building official.  
Rule 404. Section 104.9 of the code is amended to read as follows:  
104.9. Approved materials and equipment. Materials, equipment, and devices shall  
be constructed or installed in accordance with approvals granted under the act or by the  
building official. The building official shall review reports prepared by recognized  
evaluation services and determine if the intent of the code is met.  
Page 3  
History: 1981 AACS; 1995 AACS; 2001 AACS; 2004 AACS; 2008 AACS; 2010 AACS ; 2014  
AACS.  
R 408.30405 Professional architectural and engineering services.  
Rule 405. Section 107.1 of the code is amended to read as follows:  
107.1. Submittal documents. Construction documents, special inspection and  
structural programs and other data shall be submitted in 1 or more sets with each  
application for a permit. The construction documents shall be prepared by, or under  
the direct supervision of, a registered design professional when required by 1980 PA  
299, MCL 339.101 to 339.2919. Where special conditions exist, the building official  
is authorized to require additional construction documents to be prepared by a  
registered design professional.  
History: 1981 AACS; 1985 AACS; 1995 AACS; 1998-2000 AACS; 2001 AACS; 2008 AACS;  
2010 AACS.  
R 408.30406 Rescinded.  
History: 1981 AACS; 1988 AACS; 1995 AACS; 2001 AACS; 2004 AACS.  
R 408.30407 Rescinded.  
History: 1981 AACS; 1995 AACS; 1998-2000 AACS.  
R 408.30408 Fees.  
Rule 408. Section 109.1 of the code is amended to read as follows:  
109.1. Payment of fees. The fees prescribed by the act 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 has been paid.  
History: 1981 AACS; 1995 AACS; 2001 AACS; 2004 AACS; 2008 AACS; 2010 AACS.  
R 408.30409 Permit.  
Rule 409. Sections 105.1.1, 105.1.2, and 105.2 of the code are amended to read as  
follows:  
105.1.1. Annual permit. In place of an individual permit for each alteration to an  
already approved electrical, gas, mechanical, or plumbing installation, the enforcing  
agency is authorized to issue an annual permit upon application to any person, firm, or  
corporation. The applicant shall be licensed in accordance with the requirements of 1956  
PA 217, MCL 338.881 to 338.892, 1984 PA 192, MCL 338.971 to 338.988, or 2002 PA  
733, MCL 338.3511 to 338.3569.  
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105.1.2. Annual permit records. The person to whom an annual permit is issued  
shall keep a detailed record of alterations made under an annual permit. Access to the  
records shall be provided at all times and the records shall be filed with the enforcing  
agency.  
105.2. Work exempt from permit. Exemptions from permit requirements of the  
code shall not be deemed to grant authorization for any work to be done in any manner in  
violation of the provisions of the code or any other laws or ordinances of this jurisdiction.  
Permits shall not be required for any of the following:  
(a) Building permits shall not be required for any of the following:  
(i) One-story detached accessory structures used as tool and storage sheds,  
playhouses and similar uses, provided the floor area does not exceed 120 square feet (11).  
(ii) A fence that is not more than 7 feet (2 134 mm) high.  
(iii) Oil derricks.  
(iv) A retaining wall that is not more than 4 feet (1219 mm) in height measured  
from the bottom of the footing to the top of the wall, unless supporting a surcharge or  
impounding class I, II or III-A liquids.  
(v) A water tank supported directly on grade if the capacity is not greater than 5,000  
gallons (18 925 L) and the ratio of height to diameter or width is not greater than 2 to 1.  
(vi) A sidewalk and driveway not more than 30 inches (762 mm) above adjacent  
grade and not over any basement or story below and are not part of an accessible route.  
(vii) Painting, papering, tiling, carpeting, cabinets, counter tops, and similar finish  
work.  
(viii) Temporary motion picture, television, and theater stage sets and scenery.  
(ix) Prefabricated swimming pools accessory to a group R-3 occupancy, as  
applicable in section 101.2, that are less than 24 inches (610 mm) deep, are not greater  
than 5,000 gallons (18 925 L), and are installed entirely above ground.  
(x) Shade cloth structures constructed for nursery or agricultural purposes, not  
including service systems.  
(xi) Swings and other playground equipment accessory to detached 1- and 2-family  
dwellings.  
(xii) Window awnings in group R-3 and U occupancies, supported by an exterior  
wall that do not project more than 54 inches (1 372 mm) from the exterior wall and do  
not require additional support, as applicable in section 101.2 and group U occupancies.  
(xiii) Nonfixed and movable fixtures, cases, racks, counters, and partitions not over  
5 feet 9 inches (1 753 mm) in height.  
(b) Electrical permits shall not be required, as in accordance with the Michigan  
electrical code, R 408.30801 to R 408.30880, for any of the following:  
(i) Repairs and maintenance: Minor repair work, including the replacement of  
lamps or the connection of approved portable electrical equipment to approved  
permanently installed receptacles.  
(ii) Radio and television transmitting stations: The provisions of the code do not  
apply to electrical equipment used for radio and television transmissions, but do apply to  
equipment and wiring for power supply and to the installation of towers and antennas.  
(iii) Temporary testing systems: A permit is not required for the installation of any  
temporary system required for the testing or servicing of electrical equipment or  
apparatus.  
Page 5  
(c) Mechanical permits shall not be required for any of the following:  
(i) A portable gas heating appliance that has inputs of less than 30,000 Btu’s per  
hour. (ii) Portable ventilation appliances and equipment.  
(iii) Portable cooling unit.  
(iv) Steam, hot water, or chilled water piping within any heating or cooling  
equipment or appliances regulated by this code.  
(v) Replacement of any minor part that does not alter the approval of equipment or  
an appliance or make such equipment or appliance unsafe.  
(vi) A portable evaporative cooler.  
(vii) Self-contained refrigeration systems that contain 10 pounds (4.5 kg) or less of  
refrigerant, or that are actuated by motors of 1 horsepower (0.75 kW) or less.  
(viii) Portable fuel cell appliances that are not connected to a fixed piping system  
and are not interconnected to a power grid.  
(ix) An oil burner that does not require connection to a flue, such as an oil stove and  
a heater equipped with a wick.  
(x) A portable gas burner that has inputs of less than 30,000 Btu’s per hour.  
(xi) When changing or relocating a gas meter or regulator, a permit is not required  
when installing gas piping which shall be limited to 10 feet (3 005 mm) in length and not  
more then 6 fittings.  
(xii) When installing geothermal vertical closed loops under the supervision of a  
mechanical contractor licensed in HVAC as long as the company meets both the  
following:  
(A) Has obtained a certificate of registration as a well drilling contractor pursuant to  
part 127 of the public health code.  
(B) Has installed the geothermal vertical closed loops in accordance with the  
department of environmental quality best practices regarding geothermal heat pump  
closed loops. Exemption from the permit requirements of this code shall not be deemed  
to grant authorization for work to be done in violation of the provisions of this code or  
other laws or ordinances of this jurisdiction.  
(d) Plumbing permits shall not be required for either of the following:  
(i) The stopping of leaks in drains, water, soil, waste, or vent pipe. However, if any  
concealed trap, drainpipe, water, soil, waste, or vent pipe becomes defective and it  
becomes necessary to remove and replace the drain or pipe with new material, then the  
work is considered new work and a permit shall be obtained and inspection made as  
provided in the code.  
(ii) The clearing of stoppages or the repairing of leaks in pipes, valves, or fixtures,  
and the removal and reinstallation of water closets, if the repairs do not involve or require  
the replacement or rearrangement of valves, pipes, or fixtures.  
History: 1981 AACS; 1985 AACS; 1992 AACS; 1995 AACS; 2001 AACS; 2004 AACS; 2010  
AACS; 2014 AACS.  
R 408.30410 Violations.  
Rule 410. Section 114.4 of the code is amended to read as follows:  
114.4. Violation penalties. It is unlawful for any person, firm, or corporation to  
violate a provision of the code or fail to conform with any of the requirements thereof, or  
Page 6  
erect, construct, alter, extend, repair, move, remove, demolish, or occupy any building,  
structure, or equipment regulated by the code, or cause work to be performed or done, in  
conflict with or in violation of the approved construction documents or directive of  
the enforcing agency, or a permit or certificate issued under the code. A violator  
shall be assessed a fine in accordance with the act.  
History: 1981 AACS; 1995 AACS; 2001 AACS; 2004 AACS; 2008 AACS; 2010 AACS.  
R 408.30411 Stop-work order.  
Rule 411. Section 115.2 of the code is amended to read as follows:  
115.2. Issuance. Notice shall be in accordance with the act. A person who is  
served with a stop work order, except for work that the person is directed to perform to  
remove a violation or unsafe condition is subject to the penalty provisions prescribed in  
the act.  
History: 1979 AC; 1981 AACS; 1995 AACS; 2001 AACS; 2004 AACS; 2008 AACS; 2010 AACS;  
2014 AACS.  
R 408.30412 Certificate of use and occupancy.  
Rule 412. Sections 111.1 and 111.2 of the code are amended to read as follows:  
111.1. Use and occupancy. A building or structure shall not be used or occupied,  
and a change in the existing occupancy classification of a building or structure or portion  
thereof shall not be made until a certificate of occupancy has been issued in accordance  
with the act.  
Exception: Certificates of occupancy are not required for work exempt from permits  
under section 105.2.  
111.2. Certificate issued. After the building official inspects the building or  
structure and finds no violations of the provisions of this code or other laws that are  
enforced by the department and all permit and plan review fees are paid, the building  
official shall issue a certificate of occupancy that contains all of the following:  
(a) The building permit number.  
(b) The address of the structure.  
(c) A description of that portion of the structure for which the certificate is issued.  
(d) A statement that the described portion of the structure has been inspected for  
compliance with the requirements of this code for the occupancy and division of  
occupancy and the use for which the proposed occupancy is classified.  
(e) The name and signature of the building official or designee, registered in  
accordance with the building officials and inspectors registration act, 1986 PA 54, MCL  
338.2301 to 338.2313.  
(f) The edition of the code under which the permit was issued.  
(g) The use and occupancy, in accordance with the provisions of chapter 3. (h) The  
type of construction as defined in chapter 6.  
(i) The design occupant load.  
(j) If an automatic sprinkler system is provided, whether the sprinkler system is  
required.  
Page 7  
(k) Any special stipulations and conditions of the building permit.  
History: 1979 AC; 1981 AACS; 1995 AACS; 2001 AACS; 2004 AACS; 2008 AACS; 2010 AACS;  
2014 AACS.  
R 408.30413 Rescinded.  
History: 1979 AC; 1981 AACS; 1985 AACS; 1995 AACS; 2010 AACS; 2016 AACS.  
R 408.30414 Board of appeals.  
Rule 414. Sections 113.1 and 113.3 of the code are amended to read as follows:  
113.1. Means of appeal. An interested person may appeal a decision of the  
enforcing agency to the board of appeals in accordance with the act. 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 decision of a local board of  
appeals may be appealed to the construction code commission in accordance with the act  
and time frames.  
Exception: Requests for barrier free design exception shall be in accordance with  
1966 PA 1, MCL 125.1352 to 125.1356.  
113.3. Qualifications. The board of appeals shall consist of members who are  
qualified in accordance with the act and are not employees of the governmental  
subdivision or the agency enforcing the code.  
History: 1979 AC; 1981 AACS; 1985 AACS; 1988 AACS; 1992 AACS; 2004 AACS; 2008 AACS;  
2010 AACS; 2014 AACS.  
R 408.30415 Rescinded.  
History: 1979 AC; 1981 AACS.  
R 408.30415a Definitions.  
Rule 415a. The definitions of act, agricultural or agricultural purposes, and source  
point are added and the definitions of building, building inspector, building official, high-  
rise building, registered design professional, and structure in section 202 of the code are  
amended to read as follows:  
202. Definitions.  
“Act” means 1972 PA 230, MCL 125.1501 to 125.1531 and known as the Stille-  
DeRossett- Hale single state construction code act.  
“Agricultural or agricultural purposes” means of, or pertaining to, or connected with,  
or engaged in agriculture or tillage which is characterized by the act or business of  
cultivating or using land and soil for the production of crops for the use of animals or  
humans, and includes, but is not limited to, purposes related to agriculture, farming,  
Page 8  
dairying, pasturage, horticulture, floriculture, viticulture, and animal and poultry  
husbandry.  
“Attic, uninhabitable with limited storage” means uninhabitable attics with limited  
storage are those where the minimum clear height between joists and rafters is 42 inches  
or greater, 42 inches high by 24 inches in width, or greater, within the plane of the  
trusses, or where there are not two or more adjacent trusses with web configurations  
capable of accommodating an assumed rectangle.  
“Attic, uninhabitable without storage” means uninhabitable attics without storage  
are those where the maximum clear height between joists and rafters is less than 42  
inches, or where there are not 2 or more adjacent trusses with web configurations capable  
of accommodating an assumed rectangle 42 inches high by 24 inches in width or greater,  
within the plane of the trusses.  
"Building" means a combination of materials, whether portable or fixed, forming a  
structure  
affording a facility or shelter for use or occupancy by persons, animals, or property.  
The term does not include a building incidental to the use for agricultural purposes of the  
land on which the building is located if it is not used in the business of retail trade. The  
term shall be construed as though followed by the words "or part or parts of the building  
and all equipment in the building" unless the context clearly requires a different meaning.  
"Building official" as found in 1972 PA 230, MCL 125.1501 to 125.1531 and  
known as the Stille-DeRossett- Hale single state construction code act, means an  
individual who is employed by a governmental subdivision and is charged with the  
administration and enforcement of the code and who is registered in compliance with the  
building officials and inspectors registration act, 1986 PA 54, MCL 338.2301 to  
338.2313. A building official may also be an employee of a private organization.  
“High-rise building” means a building with an occupied floor located more than 55  
feet (1 6764 mm) above the lowest level of fire department vehicle access.  
"Registered design professional" means an individual who is licensed under, 1980  
PA 299, MCL 339.101 to 339.2919.  
"Structure" means that which is built or constructed, an edifice or building of any  
kind, or a piece of work artificially built up or composed of parts joined together in some  
definite manner.  
Structure does not include a structure incident to the use for agricultural purposes of  
the land on which the structure is located and does not include works of heavy civil  
construction, including without limitation, any of the following:  
(a) A highway.  
(b) A bridge.  
(c) A dam.  
(d) A reservoir.  
(e) A lock.  
(f) A mine.  
(g) A harbor.  
(h) A dockside port facility.  
(i) An airport landing facility.  
(j) A facility for the generation, or transmission, or distribution of electricity.  
Page 9  
Structure shall be construed as though followed by the words "or part or parts of the  
structure and all equipment in the structure," unless the context clearly indicates  
otherwise.  
“Source point” is defined in section 4d of 1972 PA 230, MCL 125.1504d.  
History: 1988 AACS; 1995 AACS; 2001 AACS; 2004 AACS; 2008 AACS; 2010 AACS; 2014  
AACS; 2016 AACS.  
R 408.30416 Rescinded.  
History: 1979 AC; 1981 AACS; 2004 AACS; 2016 AACS.  
R 408.30417 Rescinded.  
History: 1979 AC; 1981 AACS; 2004 AACS; 2008 AACS.  
R 408.30418 Maximum floor area allowances per occupant.  
Rule 418. Table 1004.1.2 of the code is amended to read as follows:  
Table 1004.1.2  
MAXIMUM FLOOR AREA ALLOWANCES PER OCCUPANT  
FUNCTION OF SPACE  
Agricultural building  
FLOOR AREA IN SQ. FT. PER  
300 gross  
Aircraft hangars  
500 gross  
Airport terminal  
Baggage claim  
Baggage handling  
Concourse  
20 gross  
300 gross  
100 gross  
15 gross  
Waiting areas  
Assembly  
Gaming floors (keno, slots, etc.)  
Exhibit Gallery and Museum  
11 gross  
30 net  
Assembly with fixed seats  
See section 1004.4  
Assembly without fixed seats  
Concentrated (chairs only-not fixed)  
Standing space  
7 net  
5 net  
15 net  
Unconcentrated (tables and chairs)  
Bowling centers, allow 5 persons for each  
lane including 15 feet of runway, and for  
additional areas  
7 net  
Page 10  
Business areas  
100 gross  
Courtrooms-other than fixed seating areas  
40 net  
Day care  
35 net  
Dormitories  
50 gross  
Educational  
Classroom area  
20 net  
Shops and other vocational room areas  
Locker rooms  
50 net  
15 gross  
Exercise rooms  
50 gross  
H-5 Fabrication and manufacturing areas  
Industrial areas  
200 gross  
100 gross  
Institutional areas  
Inpatient treatment areas  
Outpatient areas  
240 gross  
100 gross  
120 gross  
Sleeping areas  
Kitchens, commercial  
Library  
Reading rooms  
Stack area  
200 gross  
50 net  
100 gross  
Mall buildings-covered and open  
Locker rooms  
See Section 402.8.2  
50 gross  
60 gross  
Mercantile  
Storage, stock, shipping areas  
300 gross  
Parking garages  
200 gross  
200 gross  
Residential  
Skating rinks, swimming pools  
Rink and pool  
Decks  
50 gross  
15 gross  
Stages and platforms  
15 net  
Accessory storage areas, mechanical  
equipment room  
300 gross  
500 gross  
Warehouses  
For SI: 1 square foot = 0.0929 m2  
History: 1979 AC; 1981 AACS; 2004 AACS; 2008 AACS; 2014 AACS; 2016 AACS.  
R 408.30419 Toilet room requirements.  
Page 11  
Rule 419. Sections 1210.1, is amended and 1210.5, 1210.4, and 1210.6 are added to  
the code to read as follows:  
1210.1. Required fixtures. The number and type of plumbing fixtures provided in  
any occupancy shall comply with the Michigan plumbing code.  
1210.4. Toilet room location. Toilet rooms shall not open directly into a room used  
for the preparation of food for service to the public.  
1210.5. Baby changing stations. A building or structure that has baby changing  
stations in the women's restrooms shall have baby changing stations in the men's  
restrooms.  
1210.6. Directional signage. Directional signage indicating the route to the public  
facilities shall be posted in accordance with section 3107 of the international building  
code. Signage shall be located in a corridor or aisle at the entrance to the facilities for  
customers and visitors.  
History: 1979 AC; 1981 AACS; 2004 AACS; 2008 AACS; 2010 AACS; 2014 AACS; 2016 AACS.  
R 408.30420 Rescinded.  
History: 1979 AC; 1981 AACS; 2010 AACS; 2014 AACS; 2016 AACS.  
R 408.30421 Emergency escape and rescue.  
Rule 421. Sections 1025.1 and 1030.1 of the code are amended and 1016.2.2 is  
added to read as follows:  
1016.2.2. Group E. Egress from classrooms in group E occupancies shall be limited  
to  
pass through 1 intervening space before reaching an exit access door leading directly  
to a corridor or an exit.  
1025.1. General. Approved luminous egress path markings delineating the exit path  
shall be provided in buildings with an occupied floor located more than 75 feet (16 764  
mm) above the lowest level of fire department vehicle access of groups A, B, E, I, M, and  
R-I occupancies in accordance with sections 1024.1 to 1024.5.  
1030.1. General. In addition to the means of egress required by this chapter,  
provisions shall be made for emergency escape and rescue in group R occupancies as  
applicable in section 101.2. Basements and sleeping rooms below the fourth story above  
grade plane shall have at least 1 exterior emergency escape and rescue opening in  
accordance with this section. Where basements contain 1 or more sleeping rooms,  
emergency egress and rescue openings shall be required in each sleeping room, but shall  
not be required in adjoining areas of the basement. The opening shall open directly into a  
public street, public alley, yard, or court.  
Exceptions:  
1. In other than group R-3 occupancies as applicable in section 101.2, buildings  
equipped throughout with an approved automatic sprinkler system in accordance with  
section 903.3.1.1 or 903.3.1.2.  
Page 12  
2. In other than group R-3 occupancies as applicable in section 101.2, sleeping  
rooms provided with a door to a fire-resistance-rated corridor having access to 2 remote  
exits in opposite directions.  
3. The emergency escape and rescue opening may open onto a balcony within an  
atrium in accordance with the requirements of section 404, provided the balcony provides  
access to an exit and the dwelling unit or sleeping unit has a means of egress that is not  
open to the atrium.  
4. Basements with a ceiling height of less than 80 inches (2 032 mm) shall not be  
required to have emergency escape and rescue openings.  
5. High-rise buildings in accordance with section 403.  
6. Emergency escape and rescue openings are not required from basements, or  
sleeping rooms which have an exit door or exit access door that opens directly into a  
public street, public alley, yard, egress court, or to an exterior exit balcony that opens to a  
public street, public alley, yard, or egress court.  
7. Basements without habitable spaces and having not more than 200 square feet  
(18.6 square meters) in floor area shall not be required to have emergency escape and  
rescue openings.  
History: 1979 AC; 1981 AACS; 2004 AACS; 2008 AACS; 2010 AACS; 2014 AACS; 2016 AACS.  
R 408.30422 Rescinded.  
History: 1979 AC; 1981 AACS.  
R 408.30423 Rescinded.  
History: 1979 AC; 1981 AACS.  
R 408.30427 Barrier free design for buildings, structures, and improved areas.  
Rule 427. Sections 1101.2 and 1109.8 of the code are amended and section  
1103.2.15 is added to the code to read as follows:  
1101.2. Design. Buildings and facilities shall be designed and constructed to be  
accessible in accordance with 1966 PA 1, MCL 125.1351 to 125.1356, this code, and  
ICC/ANSI A 117.1, except sections 611 and 707.  
1103.2.15. Military, fire service, and police facilities. Housing, bathing, toilet,  
training, and storage areas intended for use and occupancy exclusively by military, fire  
service, police, or security personnel required to be physically agile are not required to be  
accessible.  
1109.8. Lifts. Platform (wheelchair) lifts may be a part of a required accessible  
route in new construction where indicated in items 1 to 10. Platform (wheelchair) lifts  
shall be installed in accordance with the Michigan elevator code, R 408.7001 to R  
408.8695.  
1. An accessible route to a performing area and speakers' platforms.  
Page 13  
2. An accessible route to wheelchair spaces required to comply with the wheelchair  
space dispersion requirements of sections 1108.2.2 to 1108.2.6.  
3. An accessible route to spaces that are not open to the general public with an  
occupant load of not more than 5.  
4. An accessible route within a dwelling or sleeping unit.  
5. An accessible route to jury boxes and witness stands; raised courtroom stations  
including judges’ benches, clerks’ stations, bailiffs’ stations, deputy clerks’ stations and  
court reporters’ stations; and to depressed areas such as the well of the court.  
6. An accessible route to load and unload areas serving amusement rides.  
7. An accessible route to play components or self-contained play structures.  
8. An accessible route to team or player seating areas serving areas of sport activity.  
9. An accessible route instead of gangways serving recreational boating facilities  
and fishing piers and platforms.  
10. An accessible route where existing exterior site constraints make use of a ramp  
or elevator infeasible.  
History: 1979 AC; 1981 AACS; 1985 AACS; 1987 AACS; 1988 AACS; 1992 AACS; 1995 AACS;  
1998-2000 AACS; 2001 AACS; 2004 AACS; 2008 AACS; 2010 AACS; 2014 AACS; 2016 AACS.  
R 408.30427a Rescinded.  
History: 1987 AACS; 1988 AACS; 1992 AACS; 1995 AACS; 2001 AACS.  
R 408.30427b Rescinded.  
History: 1988 AACS; 1992 AACS; 1995 AACS; 2001 AACS.  
R 408.30427c Rescinded.  
History: 1988 AACS; 1992 AACS; 1995 AACS; 2001 AACS.  
R 408.30427d Rescinded.  
History: 1988 AACS; 1992 AACS; 1995 AACS; 2001 AACS.  
R 408.30427e Rescinded.  
History: 1988 AACS; 1992 AACS; 1995 AACS; 2001 AACS.  
R 408.30428 Structural integrity.  
Rule 428. Section 1615.1 of the code is amended to read as follows:  
Page 14  
1615.1 . General. Buildings with an occupied floor 75 feet (22 860 mm) or more in  
height above the lowest level of fire department vehicle access and assigned to risk  
category III or IV shall comply with the requirements of this section. Frame structures  
shall comply with the requirements of section 1615.3. Bearing wall structures shall  
comply with the requirements of section 1615.4.  
History: 1979 AC; 1981 AACS; 1985 AACS; 1987 AACS; 1992 AACS; 1995 AACS; 2010 AACS;  
2014 AACS; 2016 AACS.  
R 408.30429 High-rise buildings.  
Rule 429. Sections 403.1 and 403.5.4, of the code are amended to read as follows:  
403.1. Applicability. The provisions of this section shall apply to buildings having  
the occupied floors located more than 55 feet (16 764 mm) above the lowest level of fire  
department vehicle access.  
Exception: The provisions of this section shall not apply to the following buildings  
and structures:  
1. Airport traffic control towers in accordance with section 412 of the code.  
2. Open parking garages in accordance with section 406.5of the code.  
3. Buildings with an occupancy in group A-5 in accordance with section 303.6 of  
the code.  
4. Special industrial occupancies in accordance with section 503.1.1 of the code.  
5. Buildings with any of the following:  
5.1. A group H-1 occupancy.  
5.2. A group H-2 occupancy in accordance with section 415.8, 415.9.2, 415.9.3,  
or  
426.1.  
5.3. A group H-3 occupancy in accordance with section 415.8.  
6. Existing buildings having occupied floor levels not more than 75 feet (22 860  
mm) above the lowest level of fire department vehicle access where the local unit of  
government complies with both of the following:  
6.1. The local unit of government has a municipal fire department with an ISO  
rating of 3 or lower, employing a full-time career firefighting staff.  
6.2. The governing body of the local unit of government has passed a resolution  
affirming the use of this exception and filed that resolution with the department of  
licensing and regulatory affairs, bureau of construction codes.  
403.5.4. Smokeproof exit enclosures. Every required stairway serving floors more  
than 55 feet (16 764 mm) above the lowest level of fire department vehicle access shall  
comply with sections 909.20 and 1023.10 of the code.  
History: 1979 AC; 1981 AACS; 1985 AACS; 1988 AACS; 1992 AACS; 1995 AACS; 2001 AACS;  
2008 AACS; 2010 AACS; 2014 AACS; 2016 AACS.  
R 408.30429a Rescinded.  
History: 2002 AACS; 2004 AACS; 2010 AACS; 2014 AACS; 2016 AACS.  
Page 15  
R 408.30429b Elevator lobby.  
Rule 429b. Section 713.14.1 of the code is amended to read as follows:  
713.14.1. An enclosed elevator lobby shall be provided at each floor where an  
elevator shaft enclosure connects more than 3 stories. The lobby enclosure shall separate  
the elevator shaft enclosure doors from each floor by fire partitions. In addition to the  
requirements in section 708 for fire partitions, doors protecting openings in the elevator  
lobby enclosure walls shall also be in compliance with section 716.5.3 as required for  
corridor walls and penetrations of the elevator lobby enclosure by ducts and air transfer  
openings shall be protected as required for corridors in accordance with section 717.5.4.1.  
Elevator lobbies shall have at least 1 means of egress complying with chapter 10 and  
other provisions within this code.  
Exceptions:  
1. Enclosed elevator lobbies are not required at the level or levels of exit discharge  
provided the level or levels of exit discharge is equipped with an automatic sprinkler  
system in accordance with section 903.3.1.1.  
2. Elevators not required to be located in a shaft in accordance with section 712.1  
are not required to have enclosed elevator lobbies.  
3. Enclosed elevator lobbies are not required where additional doors are provided at  
the hoistway opening in accordance with section 3002.6. The doors shall comply with  
the smoke and draft control door assembly requirements in section 716.5.3.1 when tested  
in accordance with UL 1784 without an artificial bottom seal.  
4. Enclosed elevator lobbies are not required where the building is protected by an  
automatic sprinkler system installed in accordance with section 902.2.1.1 or 903.3.1.2.  
This exception shall not apply to all of the following:  
4.1. Group I-2 occupancies.  
4.2. Group I-3 occupancies.  
4.3. Elevator serving floor levels over 55 feet above the lowest level of fire  
department vehicle access in high-rise buildings.  
5. Smoke partitions may be in place of fire partitions to separate the elevator lobby  
at each floor where the building is equipped throughout with an automatic sprinkler  
system installed in accordance with section 903.3.1.1 or 903.3.1.2. In addition to the  
requirements in section 710 for smoke partitions, doors protecting openings in the smoke  
partitions shall also be in compliance with sections 710.5.2.2, 710.5.2.3, and 716.5.9 and  
duct penetrations of the smoke partitions shall be protected as required for corridors in  
accordance with section 717.5.4.1.  
6. Enclosed elevator lobbies are not required where the elevator hoistway is  
pressurized in accordance with section 909.21.  
7. Enclosed elevator lobbies are not required where the elevator serves only open  
parking garages in accordance with section 406.5.  
History: 2014 AACS.  
R 408.30430 Liquefied petroleum gas distribution facilities.  
Rule 430. Sections 415.9.1 and 415.9.2 of the code are amended to read as follows:  
415.9.1. Flammable and combustible liquids. The storage, handling, processing,  
and transporting of flammable and combustible liquids shall be in accordance with the  
Page 16  
Michigan mechanical code, R 408.30901 to R 408.30998, and the international fire code  
listed in chapter 35, and the requirements of the Michigan rules for the storage and  
handling of flammable and combustible liquids, R 29.4101 to R 29.5516.  
415.9.2.  
Liquefied petroleum gas distribution facilities.  
The design and  
construction of propane, butane, propylene, butylene, and other liquefied petroleum gas  
distribution facilities shall conform to the applicable provisions of the Michigan liquified  
petroleum gas code, R 29.3801 to R 29.4035. The storage and handling of liquefied  
petroleum gas systems shall conform to the international fire code listed in chapter 35.  
The design and installation of piping, equipment, and systems that utilize liquefied  
petroleum gas shall be in accordance with the international fuel gas code listed in chapter  
35. Liquefied petroleum gas distribution facilities shall be ventilated in accordance with  
the Michigan mechanical code, R 408.30901 to R 408.30998, and the requirements of the  
Michigan rules for the storage and handling of flammable and combustible liquids, R  
29.4101 to R 29.5516.  
History: 1979 AC; 1981 AACS; 1985 AACS; 1988 AACS; 1992 AACS; 1995 AACS; 2001 AACS;  
2008 AACS; 2016 AACS.  
R 408.30431 Rescinded.  
History: 1979 AC; 1981 AACS; 1985 AACS.  
R 408.30432 Rescinded.  
History: 1979 AC; 1981 AACS; 1988 AACS; 1992 AACS; 1995 AACS; 2001 AACS; 2008 AACS;  
2016 AACS.  
R 408.30433 Rescinded.  
History: 1979 AC; 1981 AACS; 1985 AACS; 1987 AACS; 1988 AACS; 1992 AACS; 1995 AACS;  
1998-2000 AACS.  
R 408.30434 Rescinded.  
History: 1981 AACS; 1985 AACS; 1988 AACS; 1992 AACS.  
R 408.30437 Rescinded.  
History: 1988 AACS; 1992 AACS; 1995 AACS; 2001 AACS; 2004 AACS; 2008 AACS; 2010  
AACS; 2014 AACS; 2016 AACS.  
R 408.30441 Consumer fireworks facilities.  
Page 17  
Rule 441. Sections 307.5.1, 415.1.1, 427.1, 509.4.2.2, 907.2.5.1, 910.2.3, and 1031.1  
of the code are added to read as follows:  
307.5.1. High-hazard group H-3. Consumer fireworks 1.4G (class C common)  
Consumer fireworks 1.4G facilities shall meet the requirements of this code and those  
requirements of this code and those requirements referenced in section 427.1.  
415.1.1. Consumer fireworks facilities 1.4 G (class C common) consumer fireworks  
1.4 G facilities shall be designed and constructed in accordance with NFPA 1124 as  
referenced by the Michigan fireworks safety act, 2011 PA 256, MCL 28.451 to 28.471.  
427.1. Consumer fireworks (1.4G) facilities. The items in buildings used for the  
retail sale of consumer fireworks shall be designed and constructed in accordance with  
NFPA 1124, as referenced by the Michigan fireworks safety act, 2011 PA 256, MCL  
28.451 to 28.471 as follows:  
(a) Means of egress.  
(b) Storage rooms.  
(c) Fire alarms.  
(d) Smoke control.  
(e) Automatic sprinkler systems.  
509.4.2.2. Consumer fireworks (1.4G) facilities storage rooms. Storage rooms in  
consumer fireworks (1.4G) facilities used for the retail sale of consumer fireworks shall  
be designed and constructed in accordance with the code for the manufacture,  
transportation, storage, and retail sales of fireworks and pyrotechnic articles, NFPA 1124,  
as referenced by the Michigan fireworks safety act, 2011 PA 256, MCL 28.451 to 28.471.  
907.2.5.1. Consumer fireworks (1.4G) facilities fire alarms. Fire alarm systems in  
consumer fireworks (1.4G) facilities used for the retail sale of consumer fireworks  
storage shall be designed and constructed in accordance with the code for the  
manufacture, transportation, storage, and retail sales of fireworks and pyrotechnic  
articles, NFPA 1124, as referenced by the Michigan fireworks safety act, 2011 PA 256,  
MCL 28.451 to 28.471.  
910.2.3. Consumer fireworks (1.4G) facilities smoke and heat vents. Smoke and  
heat vents in consumer fireworks (1.4G) facilities used for the retail sale of consumer  
fireworks storage shall be designed and constructed in accordance with the code for the  
manufacture, transportation, storage, and retail sales of fireworks and pyrotechnic  
articles, NFPA 1124, as referenced by the Michigan fireworks safety act, 2011 PA 256,  
MCL 28.451 to 28.471.  
1031.1. Consumer fireworks (1.4G) facilities means of egress. The means of egress  
in consumer fireworks (1.4G) facilities used for the retail sale of consumer fireworks  
means of egress shall be designed and constructed in accordance with the code for the  
manufacture, transportation, storage, and retail sales of fireworks and pyrotechnic  
articles, NFPA 1124, as referenced by the Michigan fireworks safety act, 2011 PA 256,  
MCL 28.451 to 28.471.  
History: 2014 AACS; 2016 AACS.  
R 408.30442 Automatic sprinkler systems.  
Page 18  
Rule 442 . Sections 903.2.8, 903.2.8.2, 903.2.5, and 903.2.5.1 are amended and  
section 903.2.5.4 is added to the code to read as follows:  
903.2.8. Group R. An automatic sprinkler system installed in accordance with  
section 903.3 shall be provided throughout all buildings with a Group R fire area.  
Exception: Camp buildings in remote areas without municipal water supply that meet  
all of the following:  
2
1. Not more than 1 story, 2000 square feet (186 m ) and 25 occupants.  
2. Are used not more than 5 months in a year.  
3. Shall be provided with not less than 2 exits in compliance with section 1019.  
4. Shall not be provided with cooking equipment.  
5. Provided with a manual fire alarm system and smoke alarms throughout in  
compliance with NFPA 72 as listed in chapter 35. For cabins sleeping 4 or fewer  
occupants only, smoke alarms are required.  
6. Storage and equipment rooms shall be protected by a 1-hour fire partition.  
7. Compliance with all applicable requirements of the code.  
903.2.8.2. Adult foster care family homes. An automatic sprinkler system installed  
in accordance with section 903.3.1.3 shall be permitted in adult foster care family homes  
or adult foster care small group homes for 6 or fewer persons receiving care that are  
within a single-family dwelling and licensed in accordance with the adult foster care  
facility licensing act, 1979 PA 218, MCL 400.701 to 400.737.  
903.2.5. Group H. Automatic sprinkler systems shall be provided in high-hazard  
occupancies as required in sections 903.2.5.1 to 903.2.5.4.  
903.2.5.1. General. An automatic sprinkler system shall be installed in group H  
occupancies unless the requirements of section 903.2.5.4 are met for buildings containing  
consumer fireworks.  
903.2.5.4. Consumer fireworks (1.4G). Buildings used for the retail sale of  
consumer  
fireworks shall be provided with an automatic sprinkler system in accordance with the  
Michigan fireworks safety act, 2011 PA 256, MCL 28.451 to 28.471.  
History: 1979 AC; 1981 AACS; 2008 AACS; 2010 AACS; 2014 AACS.  
R 408.30443 Masonry.  
Rule 443. Section 1405.4.2 of the code is amended to read as follows:  
1405.4.2. Masonry. Flashing and weep holes shall be located in the first course of  
masonry above finished ground level above the foundation wall or slab; at the heads of  
windows, doors, and other wall openings; at window sills and at other points of support  
including structural floors, shelf angles, and lintels where anchored veneers are designed  
in accordance with section  
1405.6. Flashing shall extend to, or beyond, the finished face of the wall.  
History: 1979 AC; 1981 AACS; 1985 AACS; 1987 AACS; 1988 AACS; 1992 AACS; 1995 AACS;  
1998-2000 AACS; 2001 AACS; 2004 AACS; 2010 AACS; 2014 AACS.  
R 408.30444. Rescinded.  
Page 19  
History: 1979 AC; 1981 AACS; 1987 AACS; 1992 AACS; 1995 AACS; 1998-2000 AACS; 2001  
AACS; 2004 AACS; 2008 AACS.  
R 408.30445 Automatic sprinkler systems.  
Rule 445. Section 903.2.11.3 of the code is amended to read as follows:  
903.2.11.3. Buildings more than 30 feet (9144 mm) in height. An automatic  
sprinkler system shall be installed throughout a building that has a floor level which has  
an occupant load of 30 or more occupants and which is located 30 feet (9144 mm) or  
more above the lowest level of fire department vehicle access.  
Exceptions:  
1. Open parking structures.  
2. Occupancies in group F-2.  
3. Existing buildings having occupied floor levels not more than 55 feet (16764  
mm) in height above the lowest level of fire department vehicle access, where the local  
unit of government complies with the following parameters:  
3.1. The local unit of government having a municipal fire department with an ISO  
rating of 3 or lower, employing a full-time career fire fighting staff.  
3.2. The governing body of the local unit of government has passed a resolution  
affirming the use of this exception and filed that resolution with the department of  
licensing and regulatory affairs, bureau of construction codes .  
History: 1979 AC; 1981 AACS; 1987 AACS; 1992 AACS; 1995 AACS; 1998-2000 AACS; 2001  
AACS; 2004 AACS; 2010 AACS; 2016 AACS.  
R 408.30446 Smoke alarm locations.  
Rule 446. Sections 907.2.11.8 and 907.2.11.8.1 are added to the code as follows:  
907.2.11.8. Smoke alarm locations in existing buildings constructed before  
November 6, 1974. Within each dwelling unit or sleeping unit, a single-station smoke  
alarm shall be installed in all of the following locations:  
(1) In each sleeping room or each area directly outside the sleeping room.  
(2) On each floor level including the basement level.  
For sleeping units with split levels and without an intervening door between the  
adjacent levels, a smoke alarm installed on the upper level shall suffice for the adjacent  
lower level provided that the lower level is less than 1 full story below the upper level.  
907.2.11.8.1. Equipment requirements. The required equipment for smoke alarms  
shall consist of the following:  
(1) Installation. Smoke alarm devices shall be listed and installed in accordance  
with the manufacturer’s installation requirements, the provisions of the code, and the  
provisions of NFPA  
72 as listed in chapter 35.  
(2) Power Source. The equipment shall be operable by power from 1 of the  
following primary sources:  
Page 20  
(a) The building wiring provided the wiring is served from a commercial source and  
is equipped with a battery backup. Wiring shall be permanent and without a  
disconnecting switch other than as required for overcurrent protection.  
(b) A non-rechargeable battery able to power the smoke alarm in the normal  
condition for a life of 5 years.  
(c) A rechargeable battery, with proper charging, able to power the alarm for a life  
of 5 years.  
(d) A commercial use alarm system with battery backup listed and approved in  
accordance with the commercial fire warning equipment provisions of NFPA 72, as  
adopted by reference in this rule.  
(3) Audible Alarm Notification. The activation of the alarm signal shall produce a  
sound that is audible in all occupiable dwelling areas.  
(4) Testing and Maintenance. The owner of a dwelling unit, in which required or  
optional fire detection or fire protection systems equipment is installed, shall be  
responsible for the proper operation, testing, and maintenance of the equipment in  
accordance with the manufacturer’s instructions included with the equipment. The  
occupant of rental dwelling units shall be responsible for the periodic operational testing  
and periodic cleaning of the installed equipment within the rental unit in accordance with  
the testing instructions provided in the manufacturer’s instructions for the equipment. If  
the system fails, breaks, or is out of service, it shall be repaired and functional within 30  
days.  
Exception: Smoke alarms and devices installed in buildings constructed before  
November 6,  
1974 where an installation was approved by the appropriate enforcing agency under  
regulations in effect at the time of the installation shall be considered to comply with the  
provisions of the code.  
History: 1981 AACS; 1985 AACS; 2005 AACS; 2008 AACS; 2010 AACS; 2014 AACS; 2016  
AACS.  
R 408.30447 Smokeproof enclosures.  
Rule 447. Section 1023.11 of the code is amended to read as follows:  
1023.11. Smokeproof enclosures. In buildings required to comply with section 403  
or 405 of the code, each of the exits of a building that serves stories where the floor  
surface is located more than 55 feet (16 764 mm) above the lowest level of fire  
department vehicle access or more than 30 feet (9 144 mm) below the level of exit  
discharge serving such floor levels shall be a smokeproof enclosure or pressurized  
stairway in accordance with section 909.20 of the code.  
History: 1981 AACS; 1985 AACS; 1988 AACS; 1992 AACS; 1995 AACS; 2001 AACS; 2004  
AACS; 2008 AACS; 2010 AACS; 2014 AACS; 2016 AACS.  
R 408.30448 Rescinded.  
History: 1979 AC; 1981 AACS; 1987 AACS; 1992 AACS; 1995 AACS; 1998-2000 AACS; 2001  
AACS; 2008 AACS; 2010 AACS; 2016 AACS.  
Page 21  
R 408.30448a Rescinded.  
History: 1992 AACS; 1995 AACS.  
R 408.30448b Rescinded.  
History: 1992 AACS; 1995 AACS.  
R 408.30448c Rescinded.  
History: 1992 AACS; 1995 AACS.  
R 408.30448d Ground snow loads.  
Rule 448d. Figure 1608.2 of the code is amended to read as follows:  
FIGURE 1608.2 Ground Snow Loads  
Page 22