> Canadians who admit at the border to using marijuana may be refused admission, according to the United States border authorities. But the border agency said it would not routinely quiz Canadian travelers about their cannabis habits after Wednesday.

> Employees of marijuana companies and their investors will generally be allowed to enter the United States, the agency said, if they are not coming on marijuana-related business. But the agency said those people might no longer be able to obtain or hold cards that speed up border crossings.