How Canada legalized cannabis
A century in 11 milestones, from a quiet 1923 ban to becoming the first G7 nation to legalize. Free to cite; a link back to LeafNorth is appreciated.
Prohibition
Cannabis spent most of the 20th century banned, with little public debate at first.
- 1923
Cannabis is banned
Cannabis is quietly added to Canada’s list of prohibited drugs under the Opium and Narcotic Drug Act, years before most Canadians had heard of it.
- 1961
Canada signs a global treaty
Canada joins the UN Single Convention on Narcotic Drugs, locking cannabis prohibition into international commitments.
- 1972
The Le Dain Commission reports
A federal commission recommends easing cannabis penalties. Ottawa shelves the advice, but the conversation has started.
Medical access
Courts and regulators slowly opened a legal medical channel, building the industry that recreational legalization would inherit.
- 2001
Legal medical cannabis
Canada introduces the Marihuana Medical Access Regulations, the first legal route to cannabis, for patients with a doctor’s support.
- 2013
Commercial growers licensed
New rules create a commercial licensed-producer system, the backbone of the industry that exists today.
- 2015
A government runs on legalization
A new federal government is elected having promised to legalize and regulate recreational cannabis.
Legalization
Canada became the second country in the world, and the first G7 nation, to legalize recreational cannabis nationwide.
- Apr 2017
The Cannabis Act is tabled
Bill C-45 is introduced in Parliament, setting out how legal adult-use cannabis would work.
- Jun 2018
The bill becomes law
The Cannabis Act receives Royal Assent, with a legalization date set for the autumn.
- Oct 17 2018
Legalization day
Recreational cannabis becomes legal nationwide, dried flower, oils, seeds, and plants, each province running its own retail system.
- Oct 2019
“Cannabis 2.0”
Edibles, extracts, and topicals are legalized, reaching shelves over the following months and broadening the legal market well beyond flower.
- 2024
The first big review
An expert panel’s legislative review of the Cannabis Act reports back, weighing what has worked and what to adjust as the market matures.
Want the story in full? Read the narrative history of cannabis legalization in Canada, or see the key facts at a glance.
Where do the rules stand today?
Legal age, possession, and retail still differ by province, see what applies where you live.