Hi Ron, U.S. citizens and residents are not required to present proof of vaccination status when entering the United States. Furthermore, a Covid-19 test is not required for CBX passengers.
Not as far as I know.
Actually is depends on the travel purpose, if your travel is an essential travel, I think you don't need a vaccination proof.
No vacine but masks are required in airport
No test or no vaccination is required As AUS citizen entering
Nothing is required for US citizens
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