U.S. Code / Title 19 — Customs Duties / Chapter 29—United States–Mexico–Canada Agreement Implementation / Subchapter Iii—Application of Usmca to Sectors…Title 19PartPart A—Relief From Injury Caused by Import CompetitionContents§ 4551. USMCA article impact in import relief cases under Trade Act of 1974§ 4552. Presidential action regarding USMCA imports