Section R. 408.30415a - [Effective 4/9/2025] DefinitionsRule 415a. The definitions of act; attic, uninhabitable with limited storage; cold weather months; and attic, uninhabitable without storage are added, and the definitions of occupiable space and registered design professional in section 202 of the code are amended to read as follows:
202. Definitions. (a) "Act" means the Stille-DeRossett-Hale single state construction code act, 1972 PA 230, MCL 125.1501 to 125.1531(b) "Attic, uninhabitable with limited storage" means an uninhabitable attic with limited storage 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 2 or more adjacent trusses with web configurations capable of accommodating an assumed rectangle.(c) "Attic, uninhabitable without storage" means an uninhabitable attic without storage 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.(d) "Cold weather months" means November 1 through April 1 in Michigan Uniform Energy Code climate zone 5A and from October 15 through May 1 in Michigan Uniform Energy Code climate zones 6A and 7.(e) "Occupiable space" means a room or enclosed space designed for regular or non-regular human occupancy in which individuals congregate for activities, amusement, educational or similar purposes, or in which occupants are engaged at labor, and which is equipped with means of egress, heat, light, and ventilation facilities meeting the requirements of the code. Occupiable space does not include those spaces that are intended primarily for other purposes such as storage rooms and equipment rooms.(f) "Registered design professional" means an individual who is licensed under the occupational code, 1980 PA 299, MCL 339.101 to 339.2677.Mich. Admin. Code R. 408.30415a
1988 AACS; 1995 AACS; 2001 AACS; 2004 AACS; 2008 AACS; 2010 AACS; 2014 AACS; 2016 AACS; 2024 MR 23, Eff. 4/9/2025