On October 25, 2021, about one month before the detection of the Omicron variant of Covid-19 in South Africa, the Biden Administration released an announcement entitled “A Proclamation on Advancing the Safe Resumption of Global Travel During the COVID-19 Pandemic.” More an adjustment of restrictions than a lifting of them, it specified that
[b]eginning in January 2022, all inbound foreign national travelers crossing into the U.S. from Canada or Mexico via land or ferry ports of entry — whether for essential or non-essential reasons — must be fully vaccinated for COVID-19 and provide proof of vaccination. This delayed implementation is intended to provide ample time for essential travelers such as truckers, students, and health care workers to get vaccinated.
And, as trade disputes tend to go, reciprocity was swift. On November 21,
Canada announced that…