The Legal Status of Cannabis in Québec

Québec permits non-medical cannabis for adults aged 21 and older, but its rules are stricter than those in many other Canadian provinces. Visitors should check the province’s possession, retail and consumption rules rather than assuming the rules at home also apply here.

Age, Possession and Storage

Adults 21 and older may possess up to 30 grams of dried cannabis, or its equivalent, in public. The private-residence limit is 150 grams for the entire residence, regardless of how many adults live there. A person also cannot exceed 150 grams across their non-public locations. The home limit is therefore neither 30 grams nor 150 grams per roommate.

Keep cannabis safely away from minors. Possession itself is prohibited in certain educational, childcare and detention settings. Québec’s official summary of the Cannabis Regulation Act identifies the relevant restrictions.

Buying Through the SQDC

The Société québécoise du cannabis (SQDC) operates Québec’s provincial non-medical retail system, including stores and online sales. It is a subsidiary of the Société des alcools du Québec, but ordinary SAQ alcohol stores are not interchangeable with SQDC cannabis outlets. The government explains the SQDC’s statutory retail role.

Use the official SQDC website to check products, locations and delivery conditions. Do not assume that an online seller is authorized to supply Québec consumers merely because it accepts orders from a Québec address.

Vaping Products and Provincial Product Limits

The SQDC announced the introduction of cannabis vaping products from November 26, 2025. Older descriptions stating that it does not sell vaping products no longer reflect that change. Its launch announcement distinguishes regulated products from illicit cartridges while acknowledging that vaping carries health risks.

Québec retains restrictions including a 30% THC concentration ceiling and limits on appealing product characteristics such as added flavours. The SQDC’s clarification on vaping explains why federal authorization does not mean every cartridge sold elsewhere can be offered in Québec.

Smoking, Vaping and Housing

Smoking and vaping cannabis are generally prohibited in indoor and outdoor spaces open to the public, including roads. Municipalities can authorize limited park exceptions under specified conditions. These restrictions also apply to medical cannabis.

A private address is not automatic permission to smoke: tenancy and property rules matter. Check the lease and the accommodation’s policy before using cannabis in a rental, hotel room, balcony or shared space.

Home Growing Remains Prohibited

Québec prohibits possessing cannabis plants and growing them for ordinary personal, non-medical use. In Murray-Hall v. Quebec, decided April 14, 2023, the Supreme Court of Canada upheld the provincial ban.

The federal four-plant ceiling does not grant a right to grow four plants in Québec. Federally authorized medical production is a separate framework; calling a personal grow “medical” without the required authorization does not establish an exemption.

Driving and Vehicle Consumption

Driving while impaired by cannabis is illegal. Québec’s Highway Safety Code explanation still describes the broader saliva-based zero-drug-tolerance measure as awaiting the relevant equipment approval for implementation. It should not be confused with the impaired-driving offences and administrative sanctions already in force.

Cannabis consumption in road vehicles, off-highway vehicles and on bicycles is prohibited, with a conditional exception for certain medical passengers that does not permit smoking or impaired driving. A driver can face an immediate licence suspension following an impairment evaluation or refusal to comply with required testing.

The SAAQ’s driving guidance explains that effects can persist even when a person feels they have worn off. Arrange alternative transport rather than relying on how sober you feel.

Work and Medical Use

Employers can regulate cannabis use, and workers must not perform duties while their condition creates a safety risk. People providing care to minors, seniors or vulnerable individuals face an additional prohibition on use during those working hours.

Medical cannabis is mainly governed federally, while Québec’s restrictions on use continue to apply. Discuss medical needs and workplace accommodation through the appropriate clinical and employment processes; legal access and fitness for a particular task are separate questions.