U.S. Code of Federal Regulations

Regulations most recently checked for updates: Apr 14, 2026

All TitlesTitle 40Chapter IPart 205Subpart D - Subpart D—Motorcycles
§ 205.150 - Applicability.
§ 205.151 - Definitions.
§ 205.152 - Noise emission standards.
§ 205.153 - Engine displacement.
§ 205.154 - Consideration of alternative test procedures.
§ 205.155 - Motorcycle class and manufacturer abbreviation.
§ 205.156 - [Reserved]
§ 205.157 - Requirements.
§ 205.157-1 - General requirements.
§ 205.157-2 - Compliance with standards.
§ 205.157-3 - Configuration identification.
§ 205.158 - Labeling requirements.
§ 205.159 - Testing by the Administrator.
§ 205.160 - Selective enforcement auditing (SEA) requirements.
§ 205.160-1 - Test request.
§ 205.160-2 - Test sample selection and preparation.
§ 205.160-3 - [Reserved]
§ 205.160-4 - Testing procedures.
§ 205.160-5 - Reporting of the test results.
§ 205.160-6 - Passing or failing under SEA.
§ 205.160-7 - Continued testing.
§ 205.160-8 - Prohibition of distribution in commerce; manufacturer's remedy.
§ 205.162 - In-use requirements.
§ 205.162-1 - Warranty.
§ 205.162-2 - Tampering.
§ 205.162-3 - Instructions for maintenance, use, and repair.
§ 205.163 - Recall of noncomplying motorcycles; relabeling of mislabeled motorcycles.
Appendix Appendix I - Appendix I to Subparts D-E of Part 205—Motorcycle Noise Emission Test Procedures [Note]
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