---
kind: "unit"
title: "40"
title_heading: "Protection of Environment"
key: "chI/subchC/part88"
level: "part"
label: "Part 88"
heading: "Clean-Fuel Vehicles"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/40/chI-subchC-part88"
sections_count: 2
---

# Part 88 — Clean-Fuel Vehicles

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

## Sections

- [§88.1. General applicability.](/cfr/40/88.1.md)
- [§88.2 through 88.3. Reserved](/cfr/40/88.2%20through%2088.3.md)