On September 30, 2018, the United States, Mexico, and Canada reached an agreement in the renegotiation of the North American Free Trade Agreement (NAFTA) called the United States-Mexico-Canada Agreement (USMCA). Upon its ratification by the three states, the USMCA will replace NAFTA, which had been in effect since 1994. The USMCA makes a number of changes to NAFTA, some of the bigger areas being in relation to automobiles and country of origin rules, the daily industry, labor, the environment, intellectual property protections, and digital trade. The USMCA is also subject to review after six years and contains a sunset clause after sixteen years that will allow the states to renew it at that point.