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The Biden administration has said it is extending a requirement that non-US citizens crossing land or ferry terminals at the US-Mexico and US-Canada borders must be vaccinated against Covid-19.
The requirements were first adopted in November as part of reopening the United States to land crossings by foreign tourists after the borders had been closed to most foreign visitors since March 2020.
Unlike international air travellers headed to the United States, people travelling at land or ferry crossings do not need to provide a negative Covid-19 test.
