Michigan Compiled Laws, Chapter 125. Planning, Housing and Zoning § 125.1504c

Sec. 4c. (1) Beginning 1 year after the effective date of the rules promulgated under subsection (2), the owner of an existing building or structure constructed before November 6, 1974 shall install 1 or more smoke alarms in that building or structure, as provided in those rules.

(2) The director shall promulgate rules that establish standards and requirements for the installation of smoke alarms in a building or structure described in subsection (1). The rules shall include both of the following:

(3) A building that is renovated, reconstructed, or added to or whose use or occupancy is changed shall meet the requirements contained in the code for installation of smoke alarms.

(4) As used in this section, “smoke alarm” and “single-station smoke alarm” mean those terms as defined in section 82a of the housing law of Michigan, 1917 PA 167, MCL 125.482a.