---
kind: "unit"
title: "21"
title_heading: "Food and Drugs"
key: "chI/subchE/part500"
level: "part"
label: "Part 500"
heading: "General"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/21/chI-subchE-part500"
sections_count: 22
---

# Part 500 — General

Title 21 C.F.R. — Food and Drugs › Chapter I — Food and Drug Administration, Department of Health and Human Services › Subchapter E — Animal Drugs, Feeds, and Related Products

## Contents

- [Subpart A — Subpart A [Reserved]](/cfr/21/chI-subchE-part500-subpartA.md)
- [Subpart B — Specific Administrative Rulings and Decisions](/cfr/21/chI-subchE-part500-subpartB.md)
- [Subpart C — Animal Drug Labeling Requirements](/cfr/21/chI-subchE-part500-subpartC.md)
- [Subpart D — Requirements for Specific Animal Drugs](/cfr/21/chI-subchE-part500-subpartD.md)
- [Subpart E — Regulation of Carcinogenic Compounds Used in Food-Producing Animals](/cfr/21/chI-subchE-part500-subpartE.md)
- [Subpart F — Methods for Detection of Residues of Carcinogenic Compounds Used in Food-Producing Animals](/cfr/21/chI-subchE-part500-subpartF.md)