---
kind: "unit"
title: "21"
title_heading: "Food and Drugs"
key: "chII/part1316/subpartB"
level: "subpart"
label: "Subpart B"
heading: "Protection of Researchers and Research Subjects"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/21/chII-part1316-subpartB"
sections_count: 4
---

# Subpart B — Protection of Researchers and Research Subjects

Title 21 C.F.R. — Food and Drugs › Chapter II — Drug Enforcement Administration, Department of Justice › Part 1316 — Administrative Functions, Practices, and Procedures

## Sections

- [§1316.21. Definitions.](/cfr/21/1316.21.md)
- [§1316.22. Exemption.](/cfr/21/1316.22.md)
- [§1316.23. Confidentiality of identity of research subjects.](/cfr/21/1316.23.md)
- [§1316.24. Exemption from prosecution for researchers.](/cfr/21/1316.24.md)