---
kind: "unit"
title: "9"
title_heading: "Animals and Animal Products"
key: "chIII/subchF/part539"
level: "part"
label: "Part 539"
heading: "Mandatory Dispositions; Performance Standards Respecting Physical, Chemical, or Biological Contaminants"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/9/chIII-subchF-part539"
sections_count: 2
---

# Part 539 — Mandatory Dispositions; Performance Standards Respecting Physical, Chemical, or Biological Contaminants

Title 9 C.F.R. — Animals and Animal Products › Chapter III — Food Safety and Inspection Service, Department of Agriculture › Subchapter F — Mandatory Inspection of Fish of the Order Siluriformes and Products of Such Fish

## Sections

- [§539.1. Disposal of diseased or otherwise adulterated fish carcasses and parts or fish products.](/cfr/9/539.1.md)
- [§539.2. Physical, chemical, or biological contaminants.](/cfr/9/539.2.md)