---
kind: "unit"
title: "40"
title_heading: "Protection of Environment"
key: "chI/subchC/part77"
level: "part"
label: "Part 77"
heading: "Excess Emissions"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/40/chI-subchC-part77"
sections_count: 6
---

# Part 77 — Excess Emissions

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

## Sections

- [§77.1. Purpose and scope.](/cfr/40/77.1.md)
- [§77.2. General.](/cfr/40/77.2.md)
- [§77.3. Offset plans for excess emissions of sulfur dioxide.](/cfr/40/77.3.md)
- [§77.4. Administrator's action on proposed offset plans.](/cfr/40/77.4.md)
- [§77.5. Deduction of allowances to offset excess emissions of sulfur dioxide.](/cfr/40/77.5.md)
- [§77.6. Penalties for excess emissions of sulfur dioxide and nitrogen oxides.](/cfr/40/77.6.md)