On December 12, 2019, the Mexican Senate adopted the revised treaty by 107 votes to 1.  On April 3, 2020, Mexico announced its readiness to implement the agreement and joined Canada, although it requested that its auto industry have additional time to comply with the agreement.  The U.S.-Mexico-Mexico-Canada Agreement (USMCA) is a trade agreement between these parties. The USMCA replaced the North American Free Trade Agreement (NAFTA). In addition to its work with the WTO, the United States has concluded trade agreements with 20 countries that cover a number of issues, ranging from tariffs on goods and access to the agricultural market to intellectual property and the environment. For the FDA, the specific themes are chapters of agreements on regulatory issues such as SPS measures, OBTs and good regulatory practices – as well as sector chapters on cosmetics, medical devices and drugs, if any. The FDA helps develop negotiation proposals in the United States and the FDA is actively involved in trade negotiations with U.S. trading partners. On December 9, 2019, Fox News reported that negotiators from the three countries reached an agreement on implementation, paving the way for a final agreement within 24 hours and ratification by all three parties before the end of the year. Mexico has agreed to impose a minimum wage of $16 per hour for Mexican auto workers by a “neutral” third party. Mexico, which imports all of its aluminum, also objected to the provisions relating to the U.S. steel and aluminum content of automotive components.  On March 1, 2019, many organizations representing the agricultural sector in the United States announced their support for the USMCA and asked Congress to ratify the agreement.
They also called on the Trump administration to continue to support NAFTA until the new trade agreement is ratified.  On March 4, House Ways and Means President Richard Neal predicted a “very hard” path through Congress for the agreement.  Starting March 7, senior White House officials met with members of the Ways and Means House of Representatives, as well as moderate cackles from both parties, such as the Solver Caucus, the Tuesday Group and the Blue Dog Coalition, to seek ratification support. The Trump administration also withdrew from the threat to withdraw from NAFTA as negotiations with Congress continued.  Sector chapters, including Chapter 12, relating to FDA-regulated products have not been considered in most previous trade agreements, including NAFTA. Therefore, the inclusion of these annexes by the USMCA is an innovation not only in U.S. trade policy, but also for international public health. 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.  The agreement between the United States of America, the United States of Mexico and Canada 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. On 1 July 2020, the USMCA came into force in all Member States. In the 2016 U.S. presidential election, Donald Trump`s campaign included a promise to renegotiate or eliminate NAFTA if the renegotiations fail.  After the election, Trump made a series of changes that influenced trade relations with other countries.