But the US maintains a more controversial complement to the Trump administration.M.C – a sunset. Mr.C clause requiring the three countries to check after six years whether they should remain in the agreement. If a country decides not to pursue the pact, the United States runs. Mr.C 16 years later. After the signing of the original agreement, nafta`s initial labor and environmental provisions were added as subsidiary letters in order to gain Democratic support and ensure the agreement was passed under the Clinton administration. The United States. Mr.C these chapters in the main part of the trade agreement, which means that issues such as the right to organize are now subject to the normal procedures of the dispute settlement pact. During the 2016 US presidential election, Donald Trump`s campaign included a promise to renegotiate or cancel NAFTA if the renegotiations failed. The new agreement increases this threshold to 75% over time. This should force automakers to buy fewer parts in Germany, Japan, South Korea or China for an “Assembled in Mexico” car.
The pact also requires that 70 percent of a vehicle`s steel and aluminum come from North America, with the steel being both melted and cast on the continent. On December 12, 2019, the Mexican Senate adopted the revised treaty by 107 votes to 1.  On April 3, 2020, Mexico announced that it was ready to implement the agreement and join Canada, although it requested that its automotive industry have additional time to comply with the agreement.  According to the Office of the U.S. Trade Representative, the USMCA is a “mutually beneficial benefit to North American workers, farmers, ranchers, and businesses.” .