The employees — members of the Public Service Alliance of Canada (PSAC) and the Customs and Immigration Union (CIU) — have been without a contract for over three years. They are seeking better protections against workplace culture at CBSA, and greater parity with other law enforcement agencies across Canada. The union declared impasse and applied for a Public Interest Commission ruling.

A labour dispute while borders begin to reopen could cause a significant disruption to the flow of goods, services and people entering Canada.

PSAC-CIU members at CBSA include border service officers at airports, land entry points, marine ports, and commercial ports of entry, inland enforcement officers, intelligence officers, investigators, trade officers, hearings officers and non-uniformed members. The strike vote was held between June 16 and July 23.