According to Chad P. Bown (senior fellow at the Peterson Institute for International Economics), “a renegotiated NAFTA, which would restore trade barriers, is unlikely to help workers who have lost their jobs, regardless of their cause, seize new job opportunities.”  Milk legislation gives the U.S. duty-free access at 3.6%, compared to 3.25% under the Trans-Pacific Partnership, Canada`s $15.2 billion dairy market (as of 2016).   Canada has agreed to abolish Class 7 pricing rules for certain dairy products, while Canada`s supply management system remains in place.  Canada has agreed to increase the duty-free limit for purchases from the United States from 20 $US previously to 150 $US, to allow Canadian consumers better duty-free access to the U.S. market.  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 rebalanced agreement that works much better for North America, the Agreement between the United States, Mexico and Canada (USMCA), which entered into force on July 1, 2020. The USMCA is a beneficial asset for both parties for North American workers, farmers, ranchers and businesses. The agreement creates more balanced and reciprocal trade, which supports high-paying jobs for Americans and the North American economy is growing.
After diplomatic negotiations in 1990, the heads of the three nations signed the agreement in their respective capitals on December 17, 1992.  The signed agreement then had to be ratified by the legislature or parliament of each country. As expected, the USMCA was created on November 30, 2018 signed by the three parties at the G20 summit in Buenos Aires.   Disputes over labour rights, steel and aluminum prevented the ratification of this version of the agreement.   On December 10, 2019, Canada`s Deputy Prime Minister Chrystia Freeland, U.S. Trade Representative Robert Lightizer, and Mexican Under Secretary of State for North America Jesus Seade formally signed a revised agreement, ratified by all three countries on March 13, 2020. Mexico is the third largest trading partner of the United States and the second largest export market for American products. In 2018, Mexico was our third largest trading partner (after Canada and China) and the second largest export market. Reciprocal trade in goods and services amounted to $678 billion, and this trade directly and indirectly supports millions of jobs in the United States. The United States sold $265 billion. Products to Mexico in 2018 and $34 billion in services, for a total of $299 billion in U.S.
sales to Mexico. Mexico is the first or second export destination for 27 U.S. states. One of the main NAFTA provisions granted to products imported from other NAFTA countries is the status of “domestic goods”. No national, provincial or local government could impose taxes or customs duties on these goods. In addition, either tariffs were eliminated at the time of the agreement or should be phased out in 5 or 10 equal steps. The only exception at exit was the specified sensitive stations, for which the end-of-life period is 15 years. Regardless of this, on May 11, 2018, House of Representatives spokesman Paul Ryan set May 17 as the deadline for congressional action. . .