NAFTA was supplemented by two other regulations: the North American Environmental Cooperation Agreement (NAAEC) and the North American Agreement on Labour Cooperation (NAALC). These tangential agreements should prevent companies from moving to other countries in order to use lower wages, more moderate health and safety rules and more flexible environmental rules. The debate on the impact of NAFTA on its signatory countries continues. While the United States, Canada and Mexico have experienced economic growth, higher wages and stronger trade since nafta, experts disagree on the extent to which the agreement has actually contributed to these benefits, if at all, to manufacturing employment. , immigration and consumer goods prices. The results are difficult to isolate and other important developments have occurred on the continent and around the world over the past quarter century. “The USMCA will provide our workers, farmers, ranchers and businesses with a quality trade agreement that will result in freer markets, fairer trade and robust economic growth in our region. It will strengthen the middle class and create good, well-paying jobs and new opportunities for the nearly half a billion people who call North America home. President Donald Trump cried as he promised to repeal NAFTA and other trade agreements he considered unfair to the United States. On August 27, 2018, he announced a new trade agreement with Mexico, which is expected to replace it. The U.S.-Mexico trade agreement, as has been said, would maintain duty-free access for agricultural products on both sides of the border and eliminate non-tariff barriers, while encouraging more agricultural trade between Mexico and the United States and effectively replacing NAFTA.

From the beginning, critics of NAFTA feared that the agreement would result in a move of U.S. jobs to Mexico, despite additional NAALCs. NAFTA, for example, has affected thousands of U.S. auto workers in this way. Many companies have relocated their production to Mexico and other countries where labour costs are lower. However, NAFTA may not be the source of these measures.