The message is simple from U.S. Customs and Border Protection when it comes to marijuana.
"U.S. Customs and Border Protection enforces the laws of the United States and the U.S. laws have not changed following Canada's legalization of marijuana today," says CBP Director of Field Operations, Christopher Perry.
CBP held a media conference at the Windsor-Detroit Tunnel on Wendsday morning updating cross border travellers on what they need to know when it comes to marijuana.
"The questions we asked yesterday are basically the same questions that we're going to be asking today and we're generally are not asking routine questions about people's marijuana use," says Perry.
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He adds a Canadian coming to the U.S. who admits to using marijuana may result in denied admission, seizure, fines or apprehensions.
"It's a case by case decision based on what's presented to the officer," says Perry. "Although medical and recreational marijuana may be legal in some U.S. states and Canada, the sale, possession, production and distribution of marijuana or the facilitation of the aforementioned remain illegal under U.S. federal law," says Perry.
He adds Canadians crossing into the U.S. who admit to using marijuana, will be dealt with on a case by case basis.
"You're consequently crossing the border or arriving at a U.S. point of entry in violation of law may result in denied admission, seizure, fines or apprehensions," says Perry.
You must be 19 years of age in Ontario to purchase marijuana.