U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 40Chapter IPart 205Subpart E - Subpart E—Motorcycle Exhaust Systems
§ 205.164 - Applicability.
§ 205.165 - Definitions.
§ 205.166 - Noise emission standards.
§ 205.167 - Consideration of alternative test procedures.
§ 205.168 - Requirements.
§ 205.168-1 - General requirements.
§ 205.168-11 - Order to cease distribution.
§ 205.169 - Labeling requirements.
§ 205.170 - Testing by the Administrator.
§ 205.171 - Selective enforcement auditing (SEA) requirements.
§ 205.171-1 - Test request.
§ 205.171-2 - Test exhaust system sample selection and preparation.
§ 205.171-3 - Test motorcycle sample selection.
§ 205.171-6 - Testing procedures.
§ 205.171-7 - Reporting of the test results.
§ 205.171-8 - Passing or failing under SEA.
§ 205.171-9 - Continued testing.
§ 205.171-10 - Prohibition on distribution in commerce; manufacturer's remedy.
§ 205.172 - Maintenance of records; submittal of information.
§ 205.173 - In-use requirements.
§ 205.173-1 - Warranty.
§ 205.173-2 - Tampering.
§ 205.173-3 - Warning statement.
§ 205.173-4 - Information sheet.
§ 205.174 - Remedial orders.
Appendix Appendix I - Appendix I to Subparts D-E of Part 205—Motorcycle Noise Emission Test Procedures
Appendix Appendix II - Appendix II to Subpart E of Part 205—Sampling Tables
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