Proponents of NAFTA in the United States stressed that the pact was a free trade agreement and not an economic community agreement.  The free movement of goods, services and capital did not extend to work. By proposing what no comparable agreement had attempted to open up to a “great third world country” – NAFTA avoided the establishment of a common social policy and employment. The regulation of the labour market and employment has remained exclusively due to national governments.  Mr. Trudeau and Canadian Foreign Minister Chrystia Freeland announced that they would join the agreement if it was in Canada`s interest.  Freeland returned prematurely from his diplomatic trip to Europe and cancelled a planned visit to Ukraine to participate in the NAFTA negotiations in Washington at the end of August, D.C.  According to an August 31 Canadian press, published in the Ottawa Citizen, key supply management topics, Chapter 19, drugs, cultural exemption, sunset clause and de minimis thresholds.  From the first round, agriculture has been a controversial issue 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] 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”.  NAFTA was supplemented by two other regulations: the North American Agreement on Environmental Cooperation (NAAEC) and the North American Agreement on Labor Cooperation (NAALC).