The Canada Border Services Agency (CBSA; French: Agence des services frontaliers du Canada, ASFC) is a federal law enforcement agency that is responsible for border control (i.e. protection and surveillance), immigration enforcement, and customs services in Canada.
Established in 2003 by an order-in-council that amalgamated the customs function of the now-defunct Canada Customs and Revenue Agency, the enforcement function of Citizenship and Immigration Canada (now known as Immigration, Refugees and Citizenship Canada), and the port-of-entry examination function of the Canadian Food Inspection Agency (CFIA). The CBSA's creation was formalized by the Canada Border Services Agency Act, which received Royal assent on 3 November 2005. The CBSA is overseen by Parliament through the Minister of Public Safety and Emergency Preparedness.