---
kind: "unit"
title: "50"
title_heading: "Wildlife and Fisheries"
key: "chIV/subchA/part424"
level: "part"
label: "Part 424"
heading: "Listing Endangered and Threatened Species and Designating Critical Habitat"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/50/chIV-subchA-part424"
sections_count: 15
---

# Part 424 — Listing Endangered and Threatened Species and Designating Critical Habitat

Title 50 C.F.R. — Wildlife and Fisheries › 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 › Subchapter A — Subchapter A

## Contents

- [Subpart A — General Provisions](/cfr/50/chIV-subchA-part424-subpartA.md)
- [Subpart B — Revision of the Lists](/cfr/50/chIV-subchA-part424-subpartB.md)