19 USC § 4631 - Definitions

---
identifier: "/us/usc/t19/s4631"
source: "usc"
legal_status: "official_prima_facie"
title: "19 USC § 4631 - Definitions"
title_number: 19
title_name: "CUSTOMS DUTIES"
section_number: "4631"
section_name: "Definitions"
chapter_number: 29
chapter_name: "UNITED STATES–MEXICO–CANADA AGREEMENT IMPLEMENTATION"
subchapter_number: "VI"
subchapter_name: "LABOR MONITORING AND ENFORCEMENT"
positive_law: false
currency: "119-84"
last_updated: "2026-04-17"
format_version: "1.1.0"
generator: "[email protected]"
source_credit: "(Pub. L. 116–113, title VII, § 701, Jan. 29, 2020, 134 Stat. 80.)"
---


# § 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** May 1, 2019

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

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