---
kind: "unit"
title: "21"
title_heading: "Food and Drugs"
key: "chI/subchE/part501"
level: "part"
label: "Part 501"
heading: "Animal Food Labeling"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/21/chI-subchE-part501"
sections_count: 14
---

# Part 501 — Animal Food Labeling

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 — General Provisions](/cfr/21/chI-subchE-part501-subpartA.md)
- [Subpart B — Specific Animal Food Labeling Requirements](/cfr/21/chI-subchE-part501-subpartB.md)
- [Subpart C-E — Subparts C-E [Reserved]](/cfr/21/chI-subchE-part501-subpartC-E.md)
- [Subpart F — Exemptions From Animal Food Labeling Requirements](/cfr/21/chI-subchE-part501-subpartF.md)