---
kind: "unit"
title: "40"
title_heading: "Protection of Environment"
key: "chI/subchC/part72"
level: "part"
label: "Part 72"
heading: "Permits Regulation"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/40/chI-subchC-part72"
sections_count: 59
---

# Part 72 — Permits Regulation

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

## Contents

- [Subpart A — Acid Rain Program General Provisions](/cfr/40/chI-subchC-part72-subpartA.md)
- [Subpart B — Designated Representative](/cfr/40/chI-subchC-part72-subpartB.md)
- [Subpart C — Acid Rain Permit Applications](/cfr/40/chI-subchC-part72-subpartC.md)
- [Subpart D — Acid Rain Compliance Plan and Compliance Options](/cfr/40/chI-subchC-part72-subpartD.md)
- [Subpart E — Acid Rain Permit Contents](/cfr/40/chI-subchC-part72-subpartE.md)
- [Subpart F — Federal Acid Rain Permit Issuance Procedures](/cfr/40/chI-subchC-part72-subpartF.md)
- [Subpart G — Acid Rain Phase II Implementation](/cfr/40/chI-subchC-part72-subpartG.md)
- [Subpart H — Permit Revisions](/cfr/40/chI-subchC-part72-subpartH.md)
- [Subpart I — Compliance Certification](/cfr/40/chI-subchC-part72-subpartI.md)