Mich. Comp. Laws § 29.21a: Fire extinguishers or fire extinguishing devices.

Sec. 21a.

Except as provided in subsection (2), a person shall not sell, give, offer for sale, install for use, or allow to remain installed for use a fire extinguisher or fire extinguishing device containing an active agent having a level of vapor toxicity equal to or greater than any of the following listed materials, or a fire extinguisher or fire extinguishing device containing an active agent or propellant whose thermal decomposition product or products have a level of vapor toxicity equal to or greater than any of the following listed materials:

Carbon tetrachloride, CC l 4

Chlorobromomethane, CH 2 BrC l

Azeotropic chlormethane, CM- 7

Dibromodifluoromethane, CBr 2 F 2

1,2-dibromo-2-chloro-1,1,2-trifluoroethane, CBr-F 2 CBrC l F

1,2-dibromo-2,2-difluoroethane, CH 2 BrCBrF 2

Methyl bromide, CH 3 Br

Ethylene dibromide, CH 2 BrCH 2 Br

Hydrogen bromide, HBr

Methylene bromide, CH 2 Br 2

Bromodifluoromethane, CHBrF 2

A person may sell, give, offer for sale, install for use or allow to remain installed for use, a fire extinguisher or fire extinguisher device which contains, in addition to an inert propellant, bromotrifluoromethane or bromochlorodifluoromethane, or a combination of bromotrifluoromethane and bromochlorodifluoromethane.