(CBS Detroit) – After 20 months of being closed, the U.S. land border reopened to vaccinated Canadians on Monday.

The Ambassador Bridge is already seeing some of the traffic as a result.

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Travelers have to prove that they are full vaccinated but do need a test. According to the Centers for Disease Control and Prevention, all Food and Drug Administration approved and emergency use-listed vaccines are allowed.

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Canada’s border reopened to vaccinated Americans back in August.

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