On April 24, 2020, the Office of the U.S. Trade Representative (USTR) notified Congress that Canada and Mexico have taken necessary measures to meet their commitments under the United States-Mexico-Canada Agreement (USMCA).  With the U.S.’s notification that its domestic implementation measures have been completed, the preliminary measures are complete for all parties.  In accordance with the agreement, USMCA will enter into force July 1, 2020.

On April 20, 2020, U.S. Customs and Border Protection issued Cargo Systems Messaging Service (CSMS) #42429822 announcing the publication of the Interim Implementing Instructions to provide the trade community with preliminary information on claiming preferential treatment under USMCA.  USMCA Uniform Regulations are being developed, and Final Implementing Instructions will be released prior to entry into force.  The North American Free Trade Agreement (NAFTA) will remain in effect until USMCA enters into force.