---
kind: "unit"
title: "50"
title_heading: "Wildlife and Fisheries"
key: "chIV"
level: "chapter"
label: "Chapter IV"
heading: "Joint Regulations (united States Fish and Wildlife Service, Department of the Interior and National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Department of Commerce); Endangered Species Committee Regulations"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/50/chIV"
sections_count: 107
---

# Chapter IV — Joint Regulations (united States Fish and Wildlife Service, Department of the Interior and National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Department of Commerce); Endangered Species Committee Regulations

Title 50 C.F.R. — Wildlife and Fisheries

## Contents

- [Subchapter A — Subchapter A](/cfr/50/chIV-subchA.md)
- [Subchapter B — Subchapter B [reserved]](/cfr/50/chIV-subchB.md)
- [Subchapter C — Endangered Species Exemption Process](/cfr/50/chIV-subchC.md)