The terms of the USMCA remain in effect for a period of 16 years during which the parties may decide to review and/or renegotiate the terms or withdraw from the agreement. However, after six years, the duration of the sinking of the USMCA (16 years) may be revised and possibly extended if the parties believe that this would be beneficial. Canada ratified the agreement in March and the USMCA came into force on July 1, 2020. Although NAFTA is officially dead, governments and businesses are still adapting to the new rules, especially the new labour rules. Coronavirus can also complicate implementation as manufacturers adapt to new guidelines in the midst of a global economic crisis. The Trump administration`s office proposed the USMCA citing new measures for digital commerce, strengthening the protection of trade secrets and adapting the rules of origin of automobiles among the benefits of the trade agreement.  On December 10, 2019, the three countries reached a revised USMCA agreement. On January 29, 2020, Deputy Prime Minister and Minister of Intergovernmental Affairs Chrystia Freeland introduced the USMCA C-4 Transposition Act in the House of Commons and passed the first reading without a registered vote. On February 6, the bill passed second reading in the House of Commons by 275 votes to 28, with the Bloc Québécois voting against and all other parties voting in its favour, and it was referred to the Standing Committee on International Trade.    On 27 February 2020, the committee voted to send the bill to Parliament for third reading, without amendments.
The U.S.-Mexico agreement is based on the North American Free Trade Agreement (NAFTA), which originally came into force on January 1, 1994. The agreement under consideration was the result of more than a year of negotiations including possible U.S. tariffs on Canada, in addition to the possibility of separate bilateral agreements.  A trade agreement with Mexico and Canada revises Mexico`s labour laws and further encourages auto production in North America. Under the leadership of President Donald J. Trump, the United States renegotiated the North American Free Trade Agreement and replaced it with an updated and balanced agreement that works much better for North America, the U.S.-Mexico-Canada Agreement (USMCA), which came into effect on July 1, 2020. The USMCA is a mutually beneficial benefit to workers, farmers, farmers and businesses in North America. The agreement creates more balanced and reciprocal trade that supports high-paying jobs for Americans and cultivates the North American economy. The agreement between the United States of America, the United States of Mexico and Canada, commonly known as the United States-Mexico-Canada Agreement (USMCA), is a free trade agreement between Canada, Mexico and the United States in lieu of the North American Free Trade Agreement (NAFTA).
   The agreement has been referred to as NAFTA 2.0 or «New ALEFTA, since many nafta provisions have been introduced and its amendments have been found to be largely incremental.