Cannabis rules in Ontario: legal age, where to buy and where to use

The legal age for cannabis in Ontario, where you can legally buy it and the main rules on possession and use, from the official pages.

Legal age, where to buy and where to use

Age 19. Buy online from the Ontario Cannabis Store or in person from a licensed private retailer; buying elsewhere carries a fine of up to $100,000 and/or up to a year in prison. You may use it in private residences and many outdoor public places, but not in enclosed public places, near schools and playgrounds, or in any moving vehicle or boat.

Official page ↗

Federal law sets the 30-gram public possession limit; provinces set the age, sales model and where you may use it. Never drive after using cannabis, and never carry it across the border. Rules, fees and programs change and were read on 2026-11-14: confirm with the official source. General information, not legal advice. Quebec follows its own rules: see atlasquebec.ca.

Guides for this province