Oxford COVID19 Government Response Tracker

As of 27 August 2021, Canada continues to allow entry to fully vaccinated Americans. The border remains closed to all non-essential, non-American visitors until 7 September and to less-than-fully vaccinated, non-essential American visitors until further notice. The border also remains closed to all other non-essential travel from other countries (unless Canadian Citizens). See Government of Canada website, archived: https://web.archive.org/web/20210822192833/https://travel.gc.ca/travel-covid

Most links are to material archived in the Wayback Machine, so be prepared to wait....