---
kind: "unit"
title: "21"
title_heading: "Food and Drugs"
key: "chI/subchB/part189"
level: "part"
label: "Part 189"
heading: "Substances Prohibited from Use in Human Food"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/21/chI-subchB-part189"
sections_count: 21
---

# Part 189 — Substances Prohibited from Use in Human Food

Title 21 C.F.R. — Food and Drugs › Chapter I — Food and Drug Administration, Department of Health and Human Services › Subchapter B — Food for Human Consumption

## Contents

- [Subpart A — General Provisions](/cfr/21/chI-subchB-part189-subpartA.md)
- [Subpart B — Prohibited Cattle Materials](/cfr/21/chI-subchB-part189-subpartB.md)
- [Subpart C — Substances Generally Prohibited From Direct Addition or Use as Human Food](/cfr/21/chI-subchB-part189-subpartC.md)
- [Subpart D — Substances Prohibited From Indirect Addition to Human Food Through Food-Contact Surfaces](/cfr/21/chI-subchB-part189-subpartD.md)