MI SB0813

Legalizes possession and use of marihuana for adults 21 years of age and older, allowing up to 1 ounce of marihuana (with not more than 5 grams of hashish) plus up to 5 marihuana plants for personal cultivation by state residents.

Establishes a regulatory framework requiring registration of marihuana establishments (cultivation facilities, retail stores, product manufacturers, testing facilities, and lounges) with the Department of Licensing and Regulatory Affairs, with application and renewal fees capped at $5,000.

Imposes an excise tax on marihuana sales from cultivation facilities ($50 per ounce of flowers, $25 per immature plant, $15 per ounce of other marihuana), with revenue distributed to education (30%), substance abuse treatment (10%), public health campaigns (10%), and general fund (50%).

Prohibits marihuana sales to individuals under 21, smoking in public places, and consumption while operating motor vehicles; establishes civil fines and penalties for violations.

Allows local governments to regulate or prohibit marihuana establishments through ordinances and sets limits on landlord restrictions of nonsmoked marihuana consumption in residential rental properties.