The U.S. says that citizenship applicants who possess, grow or distribute marijuana may lack "good moral character," even if the activity is legal in their state or country.

Canadians wanting to cross the U.S. border are being asked different marijuana questions than they were before cannabis was legal, a U.S.-based lawyer says.

Marijuana has been legal in Canada for a month already but immigration lawyers and cannabis executives say when it comes to getting into the United States, the worst may be yet to come.

In a policy change made without fanfare Tuesday, U.S. Customs and Border Protection (CBP) now says Canadians who work in the legal cannabis industry here will be free to enter the United States.