Cannabis Laws in Ottawa

This article is general information, not legal advice. Laws change; check current rules with official sources or a lawyer.

Federal baseline: the Cannabis Act

Recreational cannabis has been legal across Canada since 17 October 2018 under the federal Cannabis Act Strong evidence^[1]. This law sets a nationwide floor that applies in Ottawa.

Possession and sharing:

• Adults may possess up to 30 grams of dried cannabis (or equivalent in other forms) in public Strong evidence^[1].
• Adults may share up to 30 g with other adults without payment Strong evidence^[1].
• Possession of more than 30 g in public is illegal.

Home cultivation:

• Households may grow up to 4 plants from licensed seeds or seedlings Strong evidence^[1]. The plants must be grown from a legal source; growing from illegally obtained seeds is an offence.

Criminal penalties:

• Selling to a minor or using a minor to commit a cannabis offence carries penalties up to 14 years' imprisonment Strong evidence^[1].

Import/export: Crossing from Ontario into Quebec with cannabis is legal (both provinces permit recreational use), but crossing any international border—including the U.S.—with cannabis is a federal offence on both sides Strong evidence^[3].

Ontario rules: age, retail, and public consumption

Ottawa follows Ontario's cannabis framework, principally the Cannabis Control Act, 2017 and the Smoke-Free Ontario Act, 2017 Strong evidence^[2][4].

Minimum age: You must be 19 or older to buy, possess, use, or grow cannabis in Ontario Strong evidence^[2].

Legal retail channels: Two channels only:

• Ontario Cannabis Store (OCS) — the provincial online retailer, which ships throughout Ontario Strong evidence.
• Authorized private retail stores licensed by the Alcohol and Gaming Commission of Ontario (AGCO) Strong evidence^[5]. Ottawa hosts dozens of licensed private retailers; AGCO maintains a store locator.

Buying from unlicensed dealers or unlicensed websites is illegal.

Where you can consume: Under the Smoke-Free Ontario Act, smoking or vaping cannabis is prohibited in Strong evidence^[4]:

• Enclosed public places and enclosed workplaces
• Restaurant and bar patios
• School grounds and within 20 metres of them
• Playgrounds, public sports fields, and within 20 metres of them
• Within 9 metres of the entrance of any hospital or long-term care home
• Motor vehicles and boats being driven

Consumption is generally allowed in private residences (subject to landlord and condo restrictions), on many private outdoor spaces, and in designated smoking areas. Edibles can be consumed anywhere consumption is legal, since they produce no smoke or vapour.

City of Ottawa bylaws and federal property

City parks and property: Ottawa's Parks and Facilities By-law (No. 2004-276, as amended) prohibits smoking and vaping—including cannabis—in city parks, beaches, and recreation facilities Strong evidence^[6]. This effectively prohibits smoking joints in Major's Hill Park, Andrew Haydon Park, the Rideau Canal pathway, and most city beaches.

Transit: Consumption is banned on OC Transpo buses, the O-Train, and all transit property under the transit by-law.

Federal property: Ottawa hosts Parliament Hill, embassies, and federal buildings under National Capital Commission (NCC) jurisdiction. The Parliamentary Protective Service and NCC enforce their own rules on NCC lands and the Parliamentary Precinct. Recreational cannabis use on Parliament Hill grounds and federal office grounds is not permitted under federal workplace and NCC policies Weak / limited. Medical cannabis use by a patient with a valid authorization may be treated differently; consult the NCC directly for specific exemptions.

Landlords and condos: Ontario landlords may include no-smoking clauses (including no-cannabis-smoking) in leases, and condo boards can restrict smoking in units and on balconies Strong evidence^[7]. Growing up to four plants is legal under federal law, but a landlord can still prohibit it in a lease.

Driving, workplaces, and border crossing

Impaired driving: Federal law sets blood-THC limits for cannabis-impaired driving Strong evidence^[9]:

• 2–5 ng/mL of THC: summary offence
• 5 ng/mL or higher: hybrid offence (can be prosecuted as indictable, carrying higher penalties)
• Combined impairment (≥2.5 ng/mL THC + 0.05% BAC): hybrid offence

Ontario adds administrative penalties: drivers aged 21 and under, novice (G1/G2) drivers, and commercial drivers face a zero-tolerance rule for any cannabis in their system and face immediate licence suspension, fines, and vehicle impoundment Strong evidence^[10].

Vehicle rules: Ontario prohibits consuming cannabis in a motor vehicle or having it accessible to anyone inside. Cannabis must be sealed in original packaging or stored out of immediate reach (e.g., in the trunk) Strong evidence^[2].

Workplaces: Employers can prohibit impairment during work hours and in safety-sensitive roles (construction, federal transport, healthcare, machinery operation). The Ontario Human Rights Code protects employees with a diagnosed cannabis-use disorder or a valid medical prescription, requiring accommodation up to the point of undue hardship Strong evidence^[8]. This protection applies to medical use but not to recreational intoxication.

Crossing the U.S. border: Cannabis remains federally illegal in the United States. Bringing any amount across Ottawa-area border crossings (Prescott–Ogdensburg Bridge, Thousand Islands Bridge) can result in seizure, fines, criminal charges, or a lifetime ban from the U.S. Strong evidence^[3].

Medical cannabis

Medical cannabis is regulated federally under Part 14 of the Cannabis Regulations Strong evidence^[1]. To access medical cannabis, a patient requires a medical document from a licensed healthcare practitioner (physician, nurse practitioner, or other approved practitioner) and must register with either:

• A licensed federal producer (mail-order service), or
• Health Canada for personal or designated-person production

Ontario does not operate a separate medical retail system; medical patients cannot purchase medical-labelled cannabis at OCS stores.

Possession limits: Medical patients may legally possess the lesser of 150 grams or a 30-day supply in public, substantially higher than the 30 g recreational limit Strong evidence^[1]. Workplace and human-rights protections for medical cannabis users are stronger than for recreational users Strong evidence^[8].

Recent changes and what to watch

2022–2024 Cannabis Act legislative review: The federal government conducted a comprehensive review of the Cannabis Act. An expert panel released recommendations but specific findings and status of implementation as of November 2026 require checking the latest Health Canada or legislative updates Weak / limited.

Ontario retail cap removed (2023): Ontario removed the earlier 75-store-per-operator cap in 2023, allowing consolidation and expansion among licensed retailers Strong evidence^[5].

Edibles potency cap unchanged: The federal 10 mg THC per package limit for edibles and other cannabis products has remained in effect and has not changed Strong evidence^[1].

Information last verified: November 2026. Cannabis rules change frequently at federal, provincial, and municipal levels. Before relying on any specific rule (retail locations, consumption zones, penalty amounts), check the linked official sources or contact the relevant authority directly.

Sources

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