It will also depend on if you have levels of THC and/or alcohol in your system within the warning or illegal ranges, if you fail the field sobriety test performed by the police officer, if you have any traces in your system as a young, novice, or commercial driver, or if you refuse to consent to being tested for impairment. Ontario represents 40.8 per cent of all recreational cannabis sales in Canada, followed by Alberta with 17.1 per cent, Quebec with 14.8 per cent, and B.C. at 13.7 per cent. Keep informed with Addiction News Daily and CCENDU alerts and bulletins As Canada prepares to legalize recreational cannabis starting October 17, 2018, the U.S. Mission to Canada would like to remind travelers that cannabis is a controlled substance under United States federal law. The sale, possession, production, distribution or the facilitation of the aforementioned of both medical and recreational cannabis remains illegal under U.S. federal law. As federal law prohibits the importation and exportation of cannabis, crossing the international border or arriving at a U.S. port of entry with cannabis may result in seizure, fines, and/or arrest, and may impact admissibility. Drug users may be ineligible for visas, as well as persons who aid, abet or facilitate insurance cannabis canada the traffic of cannabis in the United States.