• § 86.401-2006 - General applicability.

• § 86.402-78 - Definitions.

• § 86.402-98 - Definitions.

• § 86.403-78 - Abbreviations.

• § 86.404-78 - Section numbering.

• § 86.405-78 - Measurement system.

• § 86.406-78 - Introduction, structure of subpart, further information.

• § 86.407-78 - Certificate of conformity required.

• § 86.408-78 - General standards; increase in emissions; unsafe conditions.

• § 86.409-78 - Defeat devices, prohibition.

• § 86.410-90 - Emission standards for 1990 and later model year motorcycles.

• § 86.410-2006 - Emission standards for 2006 and later model year motorcycles.

• § 86.411-78 - Maintenance instructions, vehicle purchaser.

• § 86.412-78 - Maintenance instructions, submission to Administrator.

• § 86.413-2006 - Labeling.

• § 86.414-78 - Submission of vehicle identification number.

• § 86.415-78 - Production vehicles.

• § 86.416-80 - Application for certification.

• § 86.417-78 - Approval of application for certification.

• § 86.418-78 - Test fleet selection.

• § 86.419-2006 - Engine displacement, motorcycle classes.

• § 86.420-78 - Engine families.

• § 86.421-78 - Test fleet.

• § 86.422-78 - Administrator's fleet.

• § 86.423-78 - Test vehicles.

• § 86.425-78 - Test procedures.

• § 86.426-78 - Service accumulation.

• § 86.427-78 - Emission tests.

• § 86.428-80 - Maintenance, scheduled; test vehicles.

• § 86.429-78 - Maintenance, unscheduled; test vehicles.

• § 86.430-78 - Vehicle failure.

• § 86.431-78 - Data submission.

• § 86.432-78 - Deterioration factor.

• § 86.434-78 - Testing by the Administrator.

• § 86.435-78 - Extrapolated emission values.

• § 86.436-78 - Additional service accumulation.

• § 86.437-78 - Certification.

• § 86.438-78 - Amendments to the application.

• § 86.439-78 - Alternative procedure for notification of additions and changes.

• § 86.440-78 - Maintenance of records.

• § 86.441-78 - Right of entry.

• § 86.442-78 - Denial, revocation, or suspension of certification.

• § 86.443-78 - Request for hearing.

• § 86.444-78 - Hearings on certification.

• § 86.445-2006 - What temporary provisions address hardship due to unusual circumstances?

• § 86.446-2006 - What are the provisions for extending compliance deadlines for small-volume manufacturers under hardship?

• § 86.447-2006 - What provisions apply to motorcycle engines below 50 cc that are certified under the Small SI program or the Recreational-vehicle program?

• § 86.448-2006 - What provisions apply to vehicles certified under the Recreational-vehicle program?

• § 86.449 - Averaging provisions.

• § 86.450 - Treatment of confidential information.