But the United States.M.C.A. retain a more controversial addition to the Trump administration – a sunset clause that requires all three countries to verify they remain in the agreement after six years. If a country decides not to pursue the pact, the U.S.M.C.A. expires 16 years later. On December 19, 2019, the U.S. House of Representatives passed the USMCA with multiparty support with 385 votes (Democracy 193, Republican 192) to 41 (Democracy 38, Republican 2, Independent 1).  On January 16, 2020, the U.S. Senate passed the trade agreement by 89 votes (Democrats 38, Republicans 51) to 10 (Democracy 8, Republican 1, Independent 1) and the bill was forwarded to the White House for the signature of Donald Trump.  On January 29, 2020, Trump signed the agreement (Public Law No: 116-113).
 NAFTA has been formally amended, but not the 1989 Canada-U.S. Free Trade Agreement, which is only “suspended.”   In an annex to the agreement, Mexico also committed to enact far-reaching legislative changes to combat forced labour and violence against workers and to allow independent unions and labour tribunals. The International Trade Commission estimates that if the changes are made, they will increase the wages of unionized workers in Mexico and reduce their wage differences with American workers. The agreed text of the agreement was signed by the heads of state and government of the three countries on November 30, 2018, as an incidental event at the 2018 G20 summit in Buenos Aires, Argentina.  The English, Spanish and French versions will also be binding and the agreement will take effect after ratification by the three states through the adoption of enabling laws.  The CCAC participated in consultations to inform the government about the new NAFTA, participated in several rounds of negotiations and continued to analyze the legal text of the final agreement from a public interest perspective. The agreement is the result of a renegotiation between the member states of the North American Free Trade Agreement, which gave informal agreement on 30 September 2018 and officially on 1 October under the new agreement.  The USMCA was proposed by U.S.
President Donald Trump and signed on November 30, 2018 by Trump, Mexican President Enrique Pea Nieto and Canadian Prime Minister Justin Trudeau as a secondary event of the 2018 G20 summit in Buenos Aires. A revised version was signed on December 10, 2019 and ratified by the three countries, with final ratification (Canada) taking place on March 13, 2020 just before the Canadian Parliament adjourned due to the COVID-19 pandemic. However, Canada`s duty is to respect the self-management agreements of Aboriginal peoples, which are included in a footnote. The United Nations Declaration on the Rights of Indigenous Peoples is not one of them. The agreement gives U.S. farmers additional access to foreign markets, particularly in Canada. It does not dismantle Canada`s “supply management system,” which imposes the amount of production on Canadian farmers so that they can be profitable. But Canada has agreed to abolish a program that helps sellers of certain dairy products in Switzerland and abroad and opens its market to milk, cream, butter, cheese and other U.S. products. In return, the United States expanded access to its market for the Canadian dairy and sugar industry.
The cheese agreement between the United States and Mexico. (PDF, 3 pages, 0.01 MB) USMCA countries must comply with IMF standards to avoid exchange rate manipulation. The agreement requires disclosure of market interventions.