---
kind: "unit"
title: "40"
title_heading: "Protection of Environment"
key: "chI/subchC/part80"
level: "part"
label: "Part 80"
heading: "Regulation of Fuels and Fuel Additives"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/40/chI-subchC-part80"
sections_count: 93
---

# Part 80 — Regulation of Fuels and Fuel Additives

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

## Contents

- [Subpart A — General Provisions](/cfr/40/chI-subchC-part80-subpartA.md)
- [Subpart B — Subpart B [Reserved]](/cfr/40/chI-subchC-part80-subpartB.md)
- [Subpart C — Oxygenated Gasoline](/cfr/40/chI-subchC-part80-subpartC.md)
- [Subpart D — Subpart D [Reserved]](/cfr/40/chI-subchC-part80-subpartD.md)
- [Subpart E — Biogas-Derived Renewable Fuel](/cfr/40/chI-subchC-part80-subpartE.md)
- [Subpart F-L — Subparts F-L [Reserved]](/cfr/40/chI-subchC-part80-subpartF-L.md)
- [Subpart M — Renewable Fuel Standard](/cfr/40/chI-subchC-part80-subpartM.md)
- [Subpart N-O — Subparts N-O [Reserved]](/cfr/40/chI-subchC-part80-subpartN-O.md)