The CUSMA results, signed on the sidelines of the G20 of Heads of State and Government in Buenos Aires in November 2018, preserve key elements of long-term trade relations and contain new and updated provisions to address 21st century trade issues and foster opportunities for the nearly half a billion people who call North America at home. On May 11, 2018, House Of Representatives spokesman Paul Ryan set May 17 as the deadline for congressional action. This deadline was not met and the agreement with Mexico was not reached until August 27, 2018.  At that time, Canada had not approved the agreement. Mexico`s outgoing President Enrique Pea Nieto, having left office on 1 December 2018 and requiring 60 days as a review period, the deadline for making the agreed text available was set at the end of September 2018, 30 September 2018. Negotiators worked around the clock and reached an agreement less than an hour before midnight on a draft text. The next day, October 1, 2018, the USMCA text was published as an agreed document. The USMCA will have an impact on the way Member States negotiate future free trade agreements. Section 32.10 requires USMCA countries to notify USMCA members three months in advance if they plan to enter into free trade negotiations with non-market economies. Article 32.10 authorizes USMCA countries to review new free trade agreements. It is generally speculated that Article 32.10 targets China.  In fact, a senior White House official said of the USMCA agreement: “We were very concerned about China`s efforts to undermine the U.S. position by reaching agreements with others.”  Agriculture, in particular, has seen a boost.
Canada is the largest importer of U.S. agricultural products, and Canadian agricultural trade with the United States has more than tripled since 1994, as has Canada`s overall agricultural exports to NAFTA partners. Canada and the United States have also agreed on strict rules to ensure fair and transparent management of tariff quotas to ensure that distributors can use them fully. Nevertheless, NAFTA has been a recurring objective in the broader free trade debate. President Donald J. Trump says it undermines U.S. jobs and manufacturing, and in December 2019, his administration finalized an updated version of the pact with Canada and Mexico, now known as the U.S.-Mexico-Canada Agreement (USMCA). The USMCA received broad support from all parties on Capitol Hill and came into force on July 1, 2020. The agreement is designated differently by each signatory – in the United States, it is called the U.S.-Mexico-Canada Agreement (USMCA);   in Canada, it is officially known as the Canada-U.S.-Mexico Agreement (CUSMA) in English and the Canada-U.S.-Mexico Agreement (ACEUM) in French;  and in Mexico, tratado is called tratado between México, Estados Unidos y Canadé (T-MEC).   The agreement is sometimes referred to as “New NAFTA” with respect to the previous trilateral agreement for the successor, the North American Free Trade Agreement (NAFTA).