Mich. Comp. Laws § 324.5514: Department of environmental quality; prohibited acts; "wood heater" defined.

Sec. 5514.

(1) The department of environmental quality shall not do any of the following:

(a) Promulgate a rule limiting emissions from wood heaters.

(b) Enforce against a manufacturer, distributor, or consumer a federal regulation limiting emissions from wood heaters and adopted after May 1, 2014.

(2) As used in this section, "wood heater" means a wood stove, pellet stove, wood-fired hydronic heater, wood burning forced-air furnace, or masonry wood heater designed for heating a home or business.