---
kind: "title"
title: "40"
heading: "Protection of Environment"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/40"
sections_count: 24649
---

# Title 40 C.F.R. — Protection of Environment

## Contents

- [Chapter I — Environmental Protection Agency](/cfr/40/chI.md)
- [Chapter IV — Environmental Protection Agency and Department of Justice](/cfr/40/chIV.md)
- [Chapter V — Council on Environmental Quality](/cfr/40/chV.md)
- [Chapter VI — Chemical Safety and Hazard Investigation Board](/cfr/40/chVI.md)
- [Chapter VII — Environmental Protection Agency and Department of Defense; Uniform National Discharge Standards for Vessels of the Armed Forces](/cfr/40/chVII.md)
- [Chapter VIII — Gulf Coast Ecosystem Restoration Council](/cfr/40/chVIII.md)
- [Chapter IX — Federal Permitting Improvement Steering Council](/cfr/40/chIX.md)