Sec. 13309. A license shall be exhibited at all times in the customer area of a class IV installation in a conspicuous place.
Mich. Comp. Laws § 333.13309, under PUBLIC HEALTH CODE.
Mich. Comp. Laws § 333.13309
Sec. 13309. A license shall be exhibited at all times in the customer area of a class IV installation in a conspicuous place.