On May 29, 2019, Prime Minister Justin Trudeau introduced a USMCA implementation bill in the House of Commons.  On June 20, it was passed at second reading in the House of Commons and referred to the Standing Committee on International Trade.  On December 19, 2019, the U.S. House of Representatives passed the USMCA with the support of all parties by 385 votes (Democracy 193, Republican 192) to 41 (Democracy 38, Republican 2, 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.“   29. To reflect the agreement between the United States and Korea on KORUS` ORIGIN rules, I found that it was necessary to change the HTS.
On May 30, U.S. Trade Representative Robert E. Lighthizer presented Congress with a draft declaration on the administrative steps needed to implement the U.S.-Mexico Agreement (USMCA and the new NAFTA), in accordance with the 2015 Presidential Trade Promotion (TPA) Administrative Action Statement. The project will allow congress to be presented to Congress, after 30 days, on June 29, a law to implement the USMCA. In a letter  to Nancy Pelosi, House of Representatives spokeswoman Kevin McCarthy, the minority leader of the House of Representatives, the Republican, told Lighthizer that the USMCA was the gold standard in U.S. trade policy, modernizing the competitive trade in digital, intellectual property and services in the United States and creating a level playing field for U.S. businesses. , workers and farmers, an agreement that represents a fundamental shift in trade relations between Mexico and Mexico. The Governor General of Canada, Julie Payette, announced on September 11, 2019 the dissolution of canada`s 42nd Parliament and officially announced registration for the 2019 Canadian Legislative Election.
 All outstanding legislation will be abolished after each dissolution of Parliament, meaning that the USMCA Transposition Act was to be reintroduced to the 43rd Canadian Parliament, which began on December 5, 2019.  The agreement is the result of a renegotiation between member states of the North American Free Trade Agreement between 2017 and 2018, which formally approved the terms of the new agreement on 30 September 2018 and 1 October.  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.