"I'm having a plaque made with the date and time and everything. This is never actually going to be smoked. I'm going to keep it forever," said Ian Power, who was among the first to buy marijuana in St. John's, a city in the country's easternmost province of Newfoundland and Labrador.
Like Power, hundreds are now legally buying recreational marijuana all over Canada, but not without adjusting to a few rules.
As marijuana enthusiasts continue celebrating this historic day for Canada, here's a quick primer to get you up to speed.
Adults will be allowed to buy, use, possess and grow recreational marijuana, under the law
. In Quebec and Alberta, the legal age is 18; it's 19 in the remainder of the country. The measure
legalizing the recreational use of the drug passed the Senate in June.
Where can I buy it?
The supply of recreational marijuana could be limited, at least early on, in some stores.
Officials in Nova Scotia and Manitoba said they won't have a large selection, at least not on the first day, CNN affiliate CBC News reported.
"My father is going to be my first customer, and my second customer is going to be a lady who has [multiple sclerosis]," Thomas Clarke, who owns Thomas H. Clarke's Distribution cannabis retail store in Portugal Cove-St. Philip's, told CBC News
Marijuana will not be sold in the same location as alcohol or tobacco. Consumers are expected to purchase the drug from retailers regulated by provinces and territories or from federally licensed producers when those options are not available.
Can I travel in and out of Canada with weed?
Please, save yourself a lot of trouble. Whether you are entering or leaving Canada, it is illegal to have marijuana with you, and you could face criminal charges
You can't travel across international borders with it, even if it you are going to Colorado or any of the other eight US states where it has been legalized.
What about previous pot charges?
Authorities will soon announce plans to pardon Canadians who have been convicted of possession of 30 grams or less of marijuana, CNN partner CTV reported.
The production, distribution or sale of cannabis products will still be an offense for minors.
Why did they legalize it?
The Canadian legislation, known as the Cannabis Act, stems from a campaign pledge of Prime Minister Justin Trudeau to keep marijuana away from underage users
and curb marijuana-related crime.
Some health care professionals in Canada have said they are afraid of the consequences of legalizing marijuana. Stringent rules will still govern the purchase and use of marijuana.
Canada's government also made changes to impaired driving laws to address repercussions for driving under the influence of cannabis.
Legalizing cannabis is expected to create an industry worth more than $4 billion