---
kind: "unit"
title: "19"
title_heading: "Customs Duties"
key: "ch21/schIII/ptD"
level: "part"
label: "Part D"
heading: "Standards"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/19/ch21-schIII-ptD"
sections_count: 2
---

# Part D — Standards

Title 19 — Customs Duties › Chapter 21 — North American Free Trade › Subchapter III — Application of Agreement to Sectors and Services

## Contents

- [Subpart 1 — standards and measures](/usc/19/ch21-schIII-ptD-spt1.md)
- [Subpart 2 — agricultural standards](/usc/19/ch21-schIII-ptD-spt2.md)