Legalizes under state law marijuana use, growth, cultivation, possession, transportation, storage, or sale. Creates commission to regulate and license marijuana industry. Applies general retail sales taxes to marijuana, unless medical or dietary exemptions apply. Permits taxes on nonmedical marijuana sales, up to 10% of retail price. Prohibits discrimination against marijuana users or businesses. Prohibits Legislature from enacting marijuana laws. Imposes personal liability on law enforcement for wrongful marijuana destruction or assisting with certain marijuana investigations. Requires voter approval to zone beyond set limits. Nullifies other local regulations. Exempts medical marijuana collectives from licensing and local zoning. Summary ...