Mich. Comp. Laws § 125.482a

Sec. 82a. (1) Each dwelling unit contained within a class "A" multiple dwelling shall be equipped with a single-station or multiple-station smoke alarm that complies with the standards set forth in the state construction code promulgated under section 4c of the Stille-DeRossett-Hale single state construction code act, 1972 PA 230, MCL 125.1504c. (2) A class "A" multiple dwelling constructed before November 6, 1974 has 1 year after the effective date of the rules promulgated under section 4c of the Stille-DeRossett-Hale single state construction code act, 1972 PA 230, MCL 125.1504c, to comply with subsection (1). (3) An existing building that is converted to a class "A" multiple dwelling shall comply with the requirements that may be imposed by the Stille-DeRossett-Hale single state construction code act, 1972 PA 230, MCL 125.1501 to 125.1531. (4) A person owning a class "A" multiple dwelling shall comply with this section. (5) A person who violates this section is guilty of a misdemeanor punishable by a fine of not more than $500.00 or imprisonment of not more than 90 days, or both. (6) As used in this section: (a) "Dwelling unit" means a single unit providing complete independent living facilities for 1 or more persons, including permanent provisions for cooking, living, sanitation, and sleeping. (b) "Smoke alarm" means a single-station or multiple-station alarm responsive to smoke and not connected to a system. (c) "Single-station smoke alarm" means an assembly incorporating a detector, the control equipment, and the alarm sounding device into 1 unit, operated from a power supply either in the unit or obtained at the point of installation. (d) "Multiple-station smoke alarm" means 2 or more single-station alarm devices that are capable of interconnection such that actuation of 1 causes all integral or separate audible alarms to operate.