---
kind: "unit"
title: "40"
title_heading: "Protection of Environment"
key: "chI/subchG/part203"
level: "part"
label: "Part 203"
heading: "Low-Noise-Emission Products"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/40/chI-subchG-part203"
sections_count: 8
---

# Part 203 — Low-Noise-Emission Products

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

## Sections

- [§203.1. Definitions.](/cfr/40/203.1.md)
- [§203.2. Application for certification.](/cfr/40/203.2.md)
- [§203.3. Test procedures.](/cfr/40/203.3.md)
- [§203.4. Low-noise-emission product determination.](/cfr/40/203.4.md)
- [§203.5. Suitable substitute decision.](/cfr/40/203.5.md)
- [§203.6. Contracts for low-noise-emission products.](/cfr/40/203.6.md)
- [§203.7. Post-certification testing.](/cfr/40/203.7.md)
- [§203.8. Recertification.](/cfr/40/203.8.md)