---
kind: "unit"
title: "16"
title_heading: "Conservation"
key: "ch35"
level: "chapter"
label: "Chapter 35"
heading: "Endangered Species"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/16/ch35"
sections_count: 15
---

# Chapter 35 — Endangered Species

Title 16 — Conservation

## Sections

- [§1531. Congressional findings and declaration of purposes and policy](/usc/16/1531.md)
- [§1532. Definitions](/usc/16/1532.md)
- [§1533. Determination of endangered species and threatened species](/usc/16/1533.md)
- [§1534. Land acquisition](/usc/16/1534.md)
- [§1535. Cooperation with States](/usc/16/1535.md)
- [§1536. Interagency cooperation](/usc/16/1536.md)
- [§1537. International cooperation](/usc/16/1537.md)
- [§1537a. Convention implementation](/usc/16/1537a.md)
- [§1538. Prohibited acts](/usc/16/1538.md)
- [§1539. Exceptions](/usc/16/1539.md)
- [§1540. Penalties and enforcement](/usc/16/1540.md)
- [§1541. Endangered plants](/usc/16/1541.md)
- [§1542. Authorization of appropriations](/usc/16/1542.md)
- [§1543. Construction with Marine Mammal Protection Act of 1972](/usc/16/1543.md)
- [§1544. Annual cost analysis by Fish and Wildlife Service](/usc/16/1544.md)