Authorities will reportedly pardon all convictions for possession of up to 30 grams - now the legal limit - though rules about sales still vary depending on provincial regulations: Ontario, for instance, probably won't see any shops open until April.
And while that news brought joy to cannabis consumers throughout the country, there was one group of people even more excited than stoners: cannabis investors. Whether you are entering or leaving Canada, it is illegal to have marijuana with you, and you could face criminal charges.
As Canada became the second country to legalise marijuana on Wednesday, some areas faced their first major challenge as supply failed to meet demand.
Not all of the details surrounding marijuana legalization in Canada have been sorted out yet, particularly when it comes to the country's relationship with the United States, where marijuana is considered a Schedule I drug, putting it in the same category as cocaine and heroin.
British Columbia, one of the provinces with the highest rates of cannabis use, will only have one legal store open on Wednesday.
"There will not be 100,000 police officers landing in the city of Toronto shutting down every element of a dispensary, but we will be shutting them down", Toronto police Chief Mark Saunders told the Canadian Press.
The proposal is subject to approval by Parliament.
The production, distribution or sale of cannabis products will still be an offense for minors.
Currently, nine USA states allow the recreational use of marijuana, including Arizona neighbors California, Nevada and Colorado.
Alberta and Quebec have set the minimum age for purchase at 18, while other provinces have made it 19.More news: France prepares Channel Tunnel checks in case of no-deal Brexit
However, a government-run store will make cannabis available to Ontario residents to buy online.
The 46-year-old added: "Prohibition has ended right now".
Just a handful of retail locations are up and running on day one, though medical marijuana has been approved for sale in Canada for some time.
The Vienna-based International Narcotics Control Board (INCB) said, "The legalization by Canada of cannabis for non-medical purposes is incompatible with the legal obligations incumbent on states parties under the international drug control framework".
"Recreational cannabis users in Canada. will just continue with their (existing) sources of supply until the legal system catches up".
Adults are allowed to own, consume, and share with other adults up to 30 grams of dried cannabis, enough for about 60 joints.
"It was extremely emotional", he said.
Dawkins said he doesn't need to hypothesize about what will happen to the black market in Canada. "We're not known as wild and insane".
"I can't believe we did it".