Mich. Admin. Code R. 408.30513
Rule 513. The definitions of attic and sunroom addition in Section R202 of the code are amended to read as follows:
R202. Definitions.
"Attic, uninhabitable with limited storage" means uninhabitable attics with limited storage where the minimum clear height between joists and rafters is 42 inches (1 063 mm) or greater or where there are not 2 or more adjacent trusses with web configurations capable of accommodating an assumed rectangle 42 inches (1 063 mm) high by 24 inches (610 mm) in width, or greater, within the plane of the trusses.
"Attic, uninhabitable without storage" means uninhabitable attics without storage where the maximum clear height between joists and rafters is less than 42 inches (1 063 mm), or where there are not 2 or more adjacent trusses with web configurations capable of accommodating an assumed rectangle 42 inches (1 063 mm) high by 24 inches (610 mm) in width, or greater, within the plane of the trusses.
" Building Inspector" means the individual who is responsible for the administration and enforcement of the construction of buildings, structures, or appurtenances under the state construction code specified in R 408.30499 and who is registered in compliance with 2016 PA 407, MCL 339.5101 to 339.6133.
"Building Official" means the person who is appointed and employed by a governmental subdivision, who is charged with the administration and enforcement of the state codes specified in R 408.30499, and who is registered in compliance with 2016 PA 407, MCL 339.5101 to 339.6133.
"Registered design professional" means an individual who is licensed under the occupational code, 1980 PA 299, MCL 339.101 to 339.2919.
" Registered inspector" means an individual who is licensed under the occupational code, 1980 PA 299, MCL 339.101 to 339.2919.
"Sunroom addition" means a new structure with glazing in excess of 40% of the gross area of the structure's exterior walls and roof added to an existing dwelling.
Mich. Admin. Code R. 408.30513