AgreementCanada / United States / MexicoIn force, not yet used

Canada–United States–Mexico Agreement (CUSMA / USMCA / ACEUM / T-MEC)

Trade agreement among Canada, the United States and Mexico, in force since 1 July 2020. Under Article 34.7 the three countries hold a joint review on its sixth anniversary (1 July 2026); the agreement ends after 16 years unless each country confirms it wants to continue.

Stages

Passing a law is not the same as switching it on, and switching it on is not the same as using it. Each stage is dated where known.

1. In force 1 July 2020

Events

• 2 October 2026USTR opens public comments and hearing requests for the 2027 USMCA joint review, due 12 January 2027DocumentTrade talksUnited States1 source
• 23 July 2026Third US–Mexico bilateral round of the CUSMA joint review held in Mexico CityDocumentTrade talksMexico2 sources
• 1 July 2026CUSMA joint review: the United States declines to renew the agreement in its current formDocumentTrade talksUnited States2 sources
• 1 July 2026Conservatives (Majumdar, Kusie, Duncan) call the CUSMA review meeting 'a critical failure under Mark Carney's leadership'StatementStatementCanada1 source
• 24 January 2026Trump threatens a 100% tariff on all Canadian goods if Canada makes a deal with China, warning against a 'Drop Off Port' for Chinese goodsStatementStatementUnited States5 sources
• 19 December 2025Canada and the US announce formal CUSMA-review talks starting in mid-January 2026DocumentTrade talksUnited States1 source