Since the first negotiations, agriculture has been a controversial topic within NAFTA, as has been the case with almost all free trade agreements signed under the WTO. Agriculture was the only party that was not subject to trilateral negotiation; Three separate agreements have been signed between the two parties. The Canada-U.S. agreement provided for significant tariff restrictions and quotas for agricultural products (mainly sugar, dairy products and poultry products), while the Mexico-U.S. pact allowed for broader liberalization within a time frame (this was the first North-South free trade agreement for agriculture to be signed). [Clarification needed] Although President Donald Trump warned Canada on September 1 that he would exclude them from a new trade deal if Canada did not comply with its demands, it is not clear that the Trump administration has the power to do so without congressional approval. :34-6 According to reports by the Congressional Research Service (CRS), one was published in 2017 and another on July 26, 2018, it is likely that President Trump would need congressional approval for fundamental changes to NAFTA before the changes are implemented. :34-6 The kick-off of a North American free trade area began with U.S. President Ronald Reagan, who made the idea part of his 1980 presidential campaign. After the signing of the Canada-U.S. Free Trade Agreement in 1988, the governments of U.S. President George H.W.
Bush, Mexican President Carlos Salinas de Gortari and Canadian Prime Minister Brian Mulroney agreed to negotiate nafta. Both submitted the agreement for ratification in their respective capitals in December 1992, but NAFTA faced considerable opposition in both the United States and Canada. The three countries ratified NAFTA in 1993 following the addition of two related agreements, the North American Worker Cooperation Agreement (NAALC) and the North American Environmental Cooperation Agreement (NAAEC). On the other hand, the NAAEC allows complaints to be addressed directly to the Commission for Environmental Cooperation (CEC), which is a trilateral commission between the three NAFTA countries. According to the KEK website, the aim of the addition is to “promote sustainable development on the basis of mutually reinforcing economic and environmental cooperation and policies” and to ensure trilateral cooperation with laws and policies for conservation and environmental protection. The Commission can initiate complaint reports and acts as a means of maintaining NAFTA standards. Under NAFTA Article 102, there are 6 stated objectives of the treaty.