Marijuana enthusiasts in Newfoundland and Labrador, Canada's easternmost province, kicked off the first permitted sales at midnight.
Cities and towns have until January 22 to decide if they will ban privately-run marijuana stores from opening within their boundaries once shops become legal in the province next April.
Ian Power and Nikki Rose were the first to make historic inaugural purchases.
Nearly three years since the Trudeau Liberals were elected - cannabis products are now legal in Canada.
"A Canadian citizen working in or facilitating the proliferation of the legal marijuana industry in Canada, coming to the US for reasons unrelated to the marijuana industry will generally be admissible to the USA", according the CBP statement. Until then, the only legal channel to buy weed is online through the Ontario Cannabis Store.
Because cannabis remains federally illegal in the U.S., Canada's investment bankers do most of the industry's deals and its stock exchanges list most of the industry's stocks. The statement warns that while cannabis may be legal in Canada and some states, pot remains illegal under US federal law.
Though the province now only has one BC Cannabis Store open, and no privately operated stores have received final licensing approval, British Columbians don't need to travel to Kamloops to buy marijuana legally. "Young Canadians have the highest usage of marijuana anywhere in the world. criminal organizations and street gangs make over C$6 billion a year on the sale of marijuana across the country".
"Now that our neighbour to the north is opening its legal cannabis market, the longer we delay, the longer we miss out on potentially significant economic opportunities for OR and other states across the country", he said in a statement.
The announcement comes on the day that Canada has legalized so-called recreational marijuana.
Equipos de la Liga MX y MLS llegarían a la Copa Libertadores
El único antecedente que existe es el del DC United, que fue invitado a la Copa Sudamericana de 2005 y 2007 , con un discreto desempeño.
The federal government and many provinces have been cautious, starting with limited stores and products, including no edible cannabis products for a year, and tight control over supply. And retailers aren't waiting to see what demand is like.
British Columbia, which plans both province-run and private outlets, has only one government store 350 kilometres (220 miles) from its biggest city, Vancouver. Some municipalities are considering going further with an outright ban in all public spaces.
Canada is the second country in the world to legalize recreational pot nationally after Uruguay.
"October 18th is going to look very much like October 16th, in many ways", Farnworth said.
Even in provinces with more shops, empty shelves are likely due to a shortage of product. A study by the University of Waterloo and the C.D. Howe Institute economic policy think tank found legal supply will satisfy less than 60 percent of demand in the early months, although that will change as production increases.
The start of legal sales wasn't the only good news for pot aficionados: Canada said it intends to pardon everyone with convictions for possessing up to 30 grams of marijuana, the newly legal threshold.
"The archaic state of our federal law is winning over common sense", California Congressman Lou Correa - the co-sponsor of several major cannabis measures in the House of Representatives - said in an email to 420 Intel.
Law enforcement going forward could be patchy.