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19 U.S.C. 4631: DefinitionsText contains those laws in effect through Public Law 119-120 (October 7, 2026).
From Title 19-CUSTOMS DUTIESCHAPTER 29-UNITED STATES–MEXICO–CANADA AGREEMENT IMPLEMENTATION
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§4631. Definitions

In this subchapter:

(1)  Labor attaché

The term “labor attaché” means an individual hired under part B.

(2)  Labor obligations

The term “labor obligations” means the obligations under chapter 23 of the USMCA (relating to labor).

(3)  Mexico’s labor reform

The term “Mexico’s labor reform” means the legislation on labor reform enacted by Mexico on May 1, 2019.

( Pub. L. 116–113, title VII, § 701 , Jan. 29, 2020 , 134 Stat. 80 .)