Mich. Comp. Laws § 445.591: Definitions.

Sec. 1.

As used in this act:

(a) "Auxiliary container" means a bag, cup, bottle, or other packaging, whether reusable or single-use, that meets both of the following requirements:

( i ) Is made of cloth, paper, plastic, cardboard, corrugated material, aluminum, glass, postconsumer recycled material, or similar material or substrates, including coated, laminated, or multilayer substrates.

( ii ) Is designed for transporting, consuming, or protecting merchandise, food, or beverages from or at a food service or retail facility.

(b) "Local unit of government" means a county, township, city, or village.