---
kind: "unit"
title: "40"
title_heading: "Protection of Environment"
key: "chI/subchA"
level: "subchap"
label: "Subchapter A"
heading: "General"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/40/chI-subchA"
sections_count: 588
---

# Subchapter A — General

Title 40 C.F.R. — Protection of Environment › Chapter I — Environmental Protection Agency

## Contents

- [Part 1 — Statement of Organization and General Information](/cfr/40/chI-subchA-part1.md)
- [Part 2 — Public Information](/cfr/40/chI-subchA-part2.md)
- [Part 3 — Cross-Media Electronic Reporting](/cfr/40/chI-subchA-part3.md)
- [Part 4 — Uniform Relocation Assistance and Real Property Acquisition for Federal and Federally Assisted Programs](/cfr/40/chI-subchA-part4.md)
- [Part 5 — Nondiscrimination on the Basis of Sex in Education Programs or Activities Receiving Federal Financial Assistance](/cfr/40/chI-subchA-part5.md)
- [Part 6 — Procedures for Implementing the National Environmental Policy Act and Assessing the Environmental Effects Abroad of Epa Actions](/cfr/40/chI-subchA-part6.md)
- [Part 7 — Nondiscrimination in Programs or Activities Receiving Federal Assistance from the Environmental Protection Agency](/cfr/40/chI-subchA-part7.md)
- [Part 8 — Environmental Impact Assessment of Nongovernmental Activities in Antarctica](/cfr/40/chI-subchA-part8.md)
- [Part 9 — Omb Approvals under the Paperwork Reduction Act](/cfr/40/chI-subchA-part9.md)
- [Part 10 — Administrative Claims under Federal Tort Claims Act](/cfr/40/chI-subchA-part10.md)
- [Part 11 — Security Classification Regulations Pursuant to Executive Order 11652](/cfr/40/chI-subchA-part11.md)
- [Part 12 — Nondiscrimination on the Basis of Handicap in Programs or Activities Conducted by the Environmental Protection Agency](/cfr/40/chI-subchA-part12.md)
- [Part 13 — Claims Collection Standards](/cfr/40/chI-subchA-part13.md)
- [Part 14 — Employee Personal Property Claims](/cfr/40/chI-subchA-part14.md)
- [Part 16 — Implementation of Privacy Act of 1974](/cfr/40/chI-subchA-part16.md)
- [Part 17 — Implementation of the Equal Access to Justice Act in Epa Administrative Proceedings](/cfr/40/chI-subchA-part17.md)
- [Part 18 — Environmental Protection Research Fellowships and Special Research Consultants for Environmental Protection](/cfr/40/chI-subchA-part18.md)
- [Part 19 — Adjustment of Civil Monetary Penalties for Inflation](/cfr/40/chI-subchA-part19.md)
- [Part 20 — Certification of Facilities](/cfr/40/chI-subchA-part20.md)
- [Part 21 — Small Business](/cfr/40/chI-subchA-part21.md)
- [Part 22 — Consolidated Rules of Practice Governing the Administrative Assessment of Civil Penalties and the Revocation/termination or Suspension of Permits](/cfr/40/chI-subchA-part22.md)
- [Part 23 — Judicial Review under Epa-Administered Statutes](/cfr/40/chI-subchA-part23.md)
- [Part 24 — Rules Governing Issuance of and Administrative Hearings on Interim Status Corrective Action Orders](/cfr/40/chI-subchA-part24.md)
- [Part 25 — Public Participation in Programs under the Resource Conservation and Recovery Act, the Safe Drinking Water Act, and the Clean Water Act](/cfr/40/chI-subchA-part25.md)
- [Part 26 — Protection of Human Subjects](/cfr/40/chI-subchA-part26.md)
- [Part 27 — Program Fraud Civil Remedies](/cfr/40/chI-subchA-part27.md)
- [Part 29 — Intergovernmental Review of Environmental Protection Agency Programs and Activities](/cfr/40/chI-subchA-part29.md)
- [Part 30-31 — Parts 30-31 [reserved]](/cfr/40/chI-subchA-part30-31.md)