---
kind: "unit"
title: "50"
title_heading: "Wildlife and Fisheries"
key: "chI/subchA/part1"
level: "part"
label: "Part 1"
heading: "Definitions"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/50/chI-subchA-part1"
sections_count: 8
---

# Part 1 — Definitions

Title 50 C.F.R. — Wildlife and Fisheries › Chapter I — United States Fish and Wildlife Service, Department of the Interior › Subchapter A — General Provisions

## Sections

- [§1.1. Meaning of terms.](/cfr/50/1.1.md)
- [§1.2. Authorized representative.](/cfr/50/1.2.md)
- [§1.3. Service.](/cfr/50/1.3.md)
- [§1.4. Director.](/cfr/50/1.4.md)
- [§1.5. Officer in Charge.](/cfr/50/1.5.md)
- [§1.6. Person.](/cfr/50/1.6.md)
- [§1.7. Regional director.](/cfr/50/1.7.md)
- [§1.8. Secretary.](/cfr/50/1.8.md)