We crossed over in Detroit last week and a few days later received an email from the Government of Canada saying:
"
IF YOU:
- Were NOT randomly selected to complete COVID-19 molecular testing
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THEN, YOU MUST:
- for the 14 days after you entered Canada, monitor yourself for symptoms of COVID-19; and
- maintain a list of the names and contact information of every person you have come into close contact with during the 14-day period AND all of the places you have been
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So nothing about masking for 14 days.