On May 6, 2026, U.S. Customs and Border Protection (“CBP”) released new guidance via CSMS #68559236 regarding the application of 25% Section 232 duties for Medium and Heavy-Duty Vehicles (“MHDVs”) that qualify for preferential treatment under the United States-Mexico-Canada Agreement (“USMCA”). Pursuant to Presidential Proclamation 10984, the Secretary of Commerce may approve eligible MHDVs to