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

Sec. 4d. (1) Beginning December 1, 2009 and involving only buildings and structures newly constructed on or after that date, the owner, operator, or builder of residential occupancies where the occupants are primarily transient in nature, including, but not limited to, boarding houses, hotels, and motels, shall install 1 operational carbon monoxide device at each source point.

(2) The carbon monoxide device described in subsection (1) may be battery-powered, plug-in with or without battery backup, wired into the dwelling's AC power line with secondary battery backup, or connected to a system by means of a control panel. The carbon monoxide device required under subsection (1) shall have an alarm that is audible. If the international building code contains a requirement for a carbon monoxide device and that requirement is adopted by the director as part of a code adopted after the effective date of the amendatory act that added this subsection, those requirements apply and shall be followed upon the effective date of the code.

(3) A person who installs, in accordance with the manufacturer's published instructions in existence at the time of installation, a carbon monoxide device shall have no liability, directly or indirectly, to any person with respect to the operation, maintenance, or effectiveness of the carbon monoxide device.

(4) The owner or operator of the residential occupancy described in subsection (1), who installs or arranges for the installation of and who maintains a carbon monoxide device in accordance with the manufacturer's published instructions in existence at the time of the installation, shall have no liability, directly or indirectly, to any person with respect to the operation or effectiveness of the carbon monoxide device.

(5) As used in this section: