The North American Free Trade Agreement, short for NAFTA, is an agreement between the United States, Canada and Mexico that eliminates tariffs and tariffs on trade between the three countries. Trade barriers began to fall on 1 January 1994 and were completely removed on 1 January 2008. The Office of the United States Trade Representative (USTR) attributes many improvements to the U.S. economy under NAFTA provisions. From June to the end of August 2018, Canada was sidelined due to bilateral discussions between the United States and Mexico.  On August 27, 2018, Mexico and the United States announced that they had reached a bilateral agreement on a revised NAFTA trade agreement, which includes provisions that would boost U.S. auto production a 10-year data protection period against generic drug production on an expanded list of products enjoyed by pharmaceutical companies. , particularly U.S. manufacturers of high-quality bionological drugs. , a sunset clause – a 16-year expiry date with periodic audits over 6 years to eventually extend the contract for an additional 16 years, and a high de minimis threshold, where Mexico increased the de minimis value of US$50 in terms of duty-free and tax-free online purchases to $100.   According to an August 30 article in The Economist, Mexico has agreed to increase the rules of origin, which would mean that 75% of a vehicle`s components must be manufactured in North America, as opposed to the previous 62.5%, in order to avoid tariffs.
 Given that automakers are currently importing cheaper components from Asia, consumers would pay more for vehicles under the revised agreement.  In addition, approximately 40 to 45 per cent of vehicle components must be produced by workers earning at least $16 an hour, as opposed to the current $2.30 per hour that a worker earns on average at a Mexican auto plant.   The Economist described this as a „Mexican car construction in a straitjacket“.  One of the criticisms of NAFTA is the destruction of American jobs.