Cannabis Regulations in Ontario, CA (2026)
2 verified cannabis regulations for Ontario, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
Home Cultivation
Ontario residents 21 and older may grow up to 6 cannabis plants indoors per residence under Proposition 64, but outdoor cultivation is banned by OMC Chapter 9 ordinance.
Ontario Home Cannabis Cultivation
Heavy RestrictionsCalifornia Health and Safety Code § 11362.2 (Personal Cannabis Cultivation, Prop. 64)
Health and Safety Code - HSC. 11362.2. (a) Personal cultivation of cannabis under paragraph (3) of subdivision (a) of Section 11362.1 is subject to the following restrictions: (1) A person shall plant, cultivate, harvest, dry, or process plants in accordance with local ordinances, if any, adopted in accordance with subdivision (b). (2) The living plants and any cannabis produced by the plants i...
Dispensary Zoning
Ontario prohibits every commercial cannabis business, including dispensaries, delivery services and cultivation operations, in all zoning districts citywide. The city has not opted in to any state cannabis licensing category, so no location in Ontario is zoned for a storefront or delivery-only dispensary.
Ontario Bans All Cannabis Businesses Citywide
Heavy RestrictionsOntario Municipal Code Sec. 6-18.05
Sec. 6-18.05. Regulation on the Commercial Use of Cannabis, Cannabis Accessories, and Cannabis Products. The establishment or operation of any business of commercial cannabis activity is prohibited. No use permit, variance, building permit, or any other entitlement or permit, whether administrative or discretionary, shall be approved or issued for the establishment or operation of any such busi...
Looking for San Bernardino County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Ontario city rules.
Cannabis Regulations in San Bernardino County →