---
kind: "unit"
title: "19"
title_heading: "Customs Duties"
key: "chI/part181"
level: "part"
label: "Part 181"
heading: "North American Free Trade Agreement"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/19/chI-part181"
sections_count: 59
---

# Part 181 — North American Free Trade Agreement

Title 19 C.F.R. — Customs Duties › Chapter I — U.s. Customs and Border Protection, Department of Homeland Security; Department of the Treasury

## Sections

- [§181.0. Scope.](/cfr/19/181.0.md)

## Contents

- [Subpart A — General Provisions](/cfr/19/chI-part181-subpartA.md)
- [Subpart B — Export Requirements](/cfr/19/chI-part181-subpartB.md)
- [Subpart C — Import Requirements](/cfr/19/chI-part181-subpartC.md)
- [Subpart D — Post-Importation Duty Refund Claims](/cfr/19/chI-part181-subpartD.md)
- [Subpart E — Restrictions on Drawback and Duty-Deferral Programs](/cfr/19/chI-part181-subpartE.md)
- [Subpart F — Commercial Samples and Goods Returned After Repair or Alteration](/cfr/19/chI-part181-subpartF.md)
- [Subpart G — Origin Verifications and Determinations](/cfr/19/chI-part181-subpartG.md)
- [Subpart H — Penalties](/cfr/19/chI-part181-subpartH.md)
- [Subpart I — Advance Ruling Procedures](/cfr/19/chI-part181-subpartI.md)
- [Subpart J — Review and Appeal of Adverse Marking Decisions](/cfr/19/chI-part181-subpartJ.md)
- [Subpart K — Confidentiality of Business Information](/cfr/19/chI-part181-subpartK.md)
- [Subpart L — Rules of Origin](/cfr/19/chI-part181-subpartL.md)