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Regulation of cannabis

October 17, 2018: Legalization of cannabis in Canada

Montréal’s approach to non-medicinal cannabis is geared towards prevention, harm reduction and the promotion of a healthy lifestyle. The city calls upon its residents and visitors to comply with applicable laws and regulations so that cannabis consumers can coexist harmoniously with the entire population. The provincial law is applicable everywhere within Montréal's city limits*.

Legal framework

Government of Québec
An Act to constitute the Société québécoise du cannabis, to enact the Cannabis Regulation Act and to amend various highway safety-related provisions [PDF - 521 KB - 68 pages]

Government of Canada
Act respecting cannabis and to amend the Controlled Drugs and Substances Act, the Criminal Code and other Acts

Key points to remember

If you are under the age of 18
Under the provincial act, it is prohibited for you to possess cannabis.

If you are 18 or over
Under the provincial act, you may:

  1. Purchase cannabis, which is only available at the Société québécoise du cannabis (SQDC)
  2. Possess 30 grams or less of dried cannabis or its equivalent in a public place
  3. Possess 150 grams or less of dried cannabis or its equivalent in one or several private places, which includes all quantities possessed by all adults who share a residence
  4. Smoke in certain public places*. Smoking is prohibited in various locations; click here for a list of places where smoking is prohibited

* Certain by-law provisions may vary from one borough to another; see your borough by-laws for details.


It is important to abide by the legal provisions in effect in order to avoid prosecution.

  1. It is prohibited to smoke cannabis wherever smoking tobacco is already prohibited, in addition to some other places.
  2. Cannabis must be stored safely, where it is not easily accessible to minors or pets.
  3. The provincial act prohibits the cultivation of cannabis for personal use, as well as the possession of a cannabis plant.

Road safety  - Zero tolerance

Driving while impaired remains a serious criminal offence. It is prohibited to drive while impaired or to operate a vehicle while cannabis is present in your system. Any consumption of cannabis in a vehicle is prohibited.

Police officers will keep an eye on drivers.

A person is smoking cannabis in a place where I think it may be prohibited. Where can I verify or file a complaint?  
The government of Québec and police forces are responsible for the enforcement of provisions pertaining to smoking cannabis in public places, under the Cannabis Regulation Act. Call 911 if there is an emergency or a situation you are worried about. If you need information, it is better to call 1-877-416-8222.

The odor of cannabis being smoked in the park bothers me, I would like to file a complaint, where can I do this?
It is important to understand that the Cannabis Regulation Act allows people to smoke cannabis in public places, provided that they abide by the regulations of the places where it is permitted. The city wants residents to abide by legal provisions in order to ensure harmonious coexistence between consumers and non-consumers. For more information, go to or dial 1-877-416-8222 to file a complaint.

I have other unanswered questions. Where can I find additional information?
The government of Québec has designed a Web site which sets out the regulation of cannabis consumption within Québec. You can find your answers there.

If you are concerned about the consumption of someone you know, visit

If you are a landlord and want to prohibit cannabis smoking on your property, contact the Régie du logement.