Coronavirus: US extends travel limits at borders with Canada and Mexico - as it happened
US-Mexico, Canada border reopening: Travel restrictions through August
Biden diverges with Canada and extends border restrictions until at least Aug. 21 - POLITICO
Biden eyes mid-May to begin relaxing Covid travel restrictions
US Extends COVID-19 Travel Restrictions With Canada and Mexico Through August 21 - Fox21Online
Canada and U.S. Land Border Closure Extended for Non-essential Travel Til June 21st
Canada-U.S. border travel restrictions: What you need to know
Travel Restrictions - Fact Sheet - U.S. Embassy & Consulates in Mexico
US extends Covid-19 travel restrictions with Canada and Mexico through August 21
Coronavirus: Travel restrictions, border shutdowns by country, Tourism News
Canada-U.S. border restrictions extended, forcing big changes in some people's lives