Medical marijuana has been legal in Canada for almost 20 years.
The legal age to purchase marijuana in several parts of Canada is 19, while residents of Alberta and Quebec can legally buy pot once they are 18.
Clarke has been dealing marijuana illegally in Canada for 30 years.
The use of medical marijuana has been legal in Canada since 2001 and Justin Trudeau's government has spent two years working toward expanding that to include recreational marijuana.
There is expected to be a massive market for legal sales in Canada - as much as $4 billion in the first year, according to a report from consultancy Deloitte.
Uruguay fully legalized the drug back in 2013 under then-President José Mujica.
Canadian provinces and municipalities have been given the task of determining where cannabis can be bought and consumed, which has created varying levels of legislative restriction across the country.
Due to Newfoundland's unique timezone, stores on the island had the opportunity to open their doors half an hour earlier than anywhere else in Canada.
"Alcohol took my grandfather and it took his youngest son, and weed has taken no one from me ever", he said.
Cannabis will now be sold in stores and ordered online, with the drugs posted to customers' homes.
Speaking in the Collingwood-area this morning, Ford said nobody in the room asked for cannabis to be legalized and it was "thrust upon us" by the federal government.
In total, Statistics Canada says 5.4 million Canadians will buy cannabis from legal dispensaries in 2018 - about 15% of the population.
Uruguay became the first country in the world to legalise cannabis five years ago in 2013, whilst nine USA states have also legalised recreational use: Alaska, California, Colorado, Maine, Massachusetts, Nevada, Oregon, Vermont and Washington.
US Customs and Border Protection invited Canadian media to a conference call on Tuesday so officials could reiterate that marijuana remains illegal under US federal law and that those who are caught at the border with pot are subject to arrest and prosecution.
"When the law changes on the 17th, we're not going to see a big change overnight", Palmer said. She hopes to make money from pipes, bongs and marijuana paraphernalia.