---
kind: "unit"
title: "21"
title_heading: "Food and Drugs"
key: "ch13/schII"
level: "subchapter"
label: "Subchapter II"
heading: "Import and Export"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/21/ch13-schII"
sections_count: 23
---

# Subchapter II — Import and Export

Title 21 — Food and Drugs › Chapter 13 — Drug Abuse Prevention and Control

## Sections

- [§951. Definitions](/usc/21/951.md)
- [§952. Importation of controlled substances](/usc/21/952.md)
- [§953. Exportation of controlled substances](/usc/21/953.md)
- [§954. Transshipment and in-transit shipment of controlled substances](/usc/21/954.md)
- [§955. Possession on board vessels, etc., arriving in or departing from United States](/usc/21/955.md)
- [§955a...955d. Transferred](/usc/21/955a...955d.md)
- [§956. Exemption authority](/usc/21/956.md)
- [§957. Persons required to register](/usc/21/957.md)
- [§958. Registration requirements](/usc/21/958.md)
- [§959. Possession, manufacture, or distribution of controlled substance](/usc/21/959.md)
- [§960. Prohibited acts A](/usc/21/960.md)
- [§960a. Foreign terrorist organizations, terrorist persons and groups](/usc/21/960a.md)
- [§961. Prohibited acts B](/usc/21/961.md)
- [§962. Second or subsequent offenses](/usc/21/962.md)
- [§963. Attempt and conspiracy](/usc/21/963.md)
- [§964. Additional penalties](/usc/21/964.md)
- [§965. Applicability of part E of subchapter I](/usc/21/965.md)
- [§966. Authority of Secretary of the Treasury](/usc/21/966.md)
- [§967. Smuggling of controlled substances; investigations; oaths; subpenas; witnesses; evidence; production of records; territorial limits; fees and mileage of witnesses](/usc/21/967.md)
- [§968. Service of subpena; proof of service](/usc/21/968.md)
- [§969. Contempt proceedings](/usc/21/969.md)
- [§970. Criminal forfeitures](/usc/21/970.md)
- [§971. Notification, suspension of shipment, and penalties with respect to importation and exportation of listed chemicals](/usc/21/971.md)