---
kind: "unit"
title: "21"
title_heading: "Food and Drugs"
key: "chI/subchE/part556"
level: "part"
label: "Part 556"
heading: "Tolerances for Residues of New Animal Drugs in Food"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/21/chI-subchE-part556"
sections_count: 106
---

# Part 556 — Tolerances for Residues of New Animal Drugs in Food

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-part556-subpartA.md)
- [Subpart B — Specific Tolerances for Residues of Approved and Conditionally Approved New Animal Drugs](/cfr/21/chI-subchE-part556-subpartB.md)