On December 10, 2019, a revised USMCA agreement was concluded by the three countries. On January 29, 2020, Deputy Prime Minister and Minister of Intergovernmental Affairs Chrystia Freeland introduced the USMCA C-4 Implementation Act in the House of Commons and passed first reading without a recorded vote. On February 6, the bill was passed in the House of Commons by a vote of 275 to 28 at second reading, with the Bloc Québécois voting against and all other parties, and was referred to the Standing Committee on International Trade.    On February 27, 2020, the committee voted to refer the bill back to the plenary for third reading, without amendment. As expected, the USMCA was signed by all three sides at the G20 summit in Buenos Aires on November 30, 2018.   Disputes over labour rights, steel and aluminum prevented the ratification of this version of the agreement.   On December 10, 2019, Canada`s Deputy Prime Minister Chrystia Freeland, U.S. Trade Representative Robert Lightizer, and Mexican Under Secretary of State for North America Jesus Seade formally signed a revised agreement, ratified by all three countries on March 13, 2020. On June 1, 2020, the USTR office issued the Uniform Rules, the last hurdle before the agreement was implemented on July 1, 2020. The Trade Representative proposed the USMCA, citing new digital trade measures, stronger trade secret protections and adaptations to rules of origin for motor vehicles as some of the benefits of the trade deal.  Member states` growing objections to U.S.
trade policy and various aspects of the USMCA have impacted the signature and ratification process. Mexico said they would not sign the USMCA if tariffs on steel and aluminum were maintained.  Based on U.S. results of November 6, 2018. . .