On-Road Motorcycles Regulation

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This page last reviewed November 28, 2023

Amendments to On-Road Motorcycle Emission Standards and Test Procedures and Adoption of New On-Board Diagnostics and Zero-Emission Motorcycle Requirements

Public Comments Received
Erratum
Hearing Action and Supplemental 15 Day Notices

Posted December 5, 2024

Notice of Decision Not To Proceed

Posted October 11, 2024

Notice of Public Availability of Modified Text and Availability of Additional Documents and Information  (Deadline to Comment: October 28, 2024)
Attachment A-1: Proposed 15-day Modifications to Text of the Originally Proposed Amendments to Regulation Order Amendments to On-Road Motorcycle Emission Standards and Test Procedures and Adoption of New On-Board Diagnostics and Zero Emission Motorcycle Requirements  (15-day Changes Available for Comment)
Attachment A-2: Alternate Format to the Proposed 15-day Modifications to Text of the Originally Proposed Amendments to Regulation Order Amendments to On-Road Motorcycle Emission Standards and Test Procedures and Adoption of New On-Board Diagnostics and Zero Emission Motorcycle Requirements  ~Alternate Format to Attachment A-1 Available for Comment~
Attachment A-3: Proposed 15-Day Changes and 45-Day Changes Compared to the Current Regulation  ~For Review Only~
Attachment B-1: Proposed 15-day Modifications to California 2028 and Subsequent Model Year Exhaust Emission Standards and Test Procedures for On-Road Motorcycles  (15-day Changes Available for Comment)
Attachment B-2: Alternate Format to the Proposed 15-day Modifications to California 2028 and Subsequent Model Year Exhaust Emission Standards and Test Procedures for On-Road Motorcycles  ~ Alternate Format to Attachment B-1 Available for Comment~
Attachment C-1: Proposed 15-day Modifications to TP-934 Test Procedure for Determining Evaporative Emissions from Model Year 2028 and Subsequent On-Road Motorcycles  (15-day Changes Available for Comment)
Attachment C-2: Alternate Format to the Proposed 15-day Modifications to TP-934 Test Procedure for Determining Evaporative Emissions from Model Year 2028 and Subsequent On-Road Motorcycles  ~ Alternate Format to Attachment C-1 Available for Comment~
Attachment D-1: Proposed 15-day Modifications to the California Evaporative Emission Standards and Test Procedures for 2001 through 2025 Model Year Passenger Cars, Light-Duty Trucks, Medium-Duty Vehicles, and Heavy-Duty Vehicles and 2001 Through 2027 Model Year Motorcycles  (15-day Changes Available for Comment)
Attachment D-2: Alternate Format to the Proposed 15-day Modifications to the California Evaporative Emission Standards and Test Procedures for 2001 through 2025 Model Year Passenger Cars, Light-Duty Trucks, Medium-Duty Vehicles, and Heavy-Duty Vehicles and 2001 Through 2027 Model Year Motorcycles  ~Alternate Format to Attachment D-1 Available for Comment~
Attachment D-3: Proposed 15-Day Changes and 45-Day Changes Compared to the Current Regulation  ~For Review Only~
Attachment E-1: Proposed 15-day Modifications to the California 2015 through 2025 Model Year Criteria Pollutant Exhaust Emission Standards and Test Procedures and 2017 And Subsequent Model Year Greenhouse Gas Exhaust Emission Standards and Test Procedures For Passenger Cars, Light-Duty Trucks, And Medium-Duty Vehicles  (15-day Changes Available for Comment)
Attachment E-2: Alternate Format to the Proposed 15-day Modifications to the California 2015 through 2025 Model Year Criteria Pollutant Exhaust Emission Standards and Test Procedures and 2017 And Subsequent Model Year Greenhouse Gas Exhaust Emission Standards and Test Procedures For Passenger Cars, Light-Duty Trucks, And Medium-Duty Vehicles  ~Alternate Format to Attachment E-1 Available for Comment~
Attachment F: Supplement to Economic Impact and Emissions Assessment
Public Hearing Notice and Related Material

Posted November 7, 2024

Notice of Postponement

Posted October 7, 2024

Second Notice of Public Hearing  (Public Hearing Scheduled: November 7, 2024, at 2:00pm)

Posted January 19, 2024

Notice of Postponement

Posted November 28, 2023

Notice of Public Hearing  (Postponed)
Staff Report: Initial Statement of Reasons
Appendix A: Proposed Regulation Order
Alternate Version of Appendix A: Proposed Regulation Order
Appendix B1: California 2028 and Subsequent Model Year Exhaust Emission Standards and Test Procedures for On-Road Motorcycles
Appendix B-2: TP-934 Test Procedure for Determining Evaporative Emissions from Model Year 2028 and Subsequent On-Road Motorcycles
Appendix B-3: California Evaporative Emission Standards and Test Procedures For 2001 Through 2025 Model Year Passenger Cars, Light-Duty Trucks, Medium-Duty Vehicles, and Heavy-Duty Vehicles and 2001 and Through 2027 Model Year Motorcycles
Alternate Version of Appendix B-3: California Evaporative Emission Standards and Test Procedures For 2001 Through 2025 Model Year Passenger Cars, Light-Duty Trucks, Medium-Duty Vehicles, and Heavy-Duty Vehicles and 2001 and Through 2027 Model Year Motorcycles
Appendix C: Economic Analysis
Appendix C-2: Summary and Response to Department of Finance Comments on the Standardized Regulatory Impact Assessment
Appendix D-1: Purpose and Rationale for Proposed Appendix B1 California 2028 and Subsequent Model Year Exhaust Emission Standards and Test Procedures for On-Road Motorcycles
Appendix D-2: Purpose and Rationale for Proposed Appendix A On-Board Diagnostic (OBD) Requirements of On-Road Motorcycles - CCR, Title 13, Sections 1958.2 and 1958.3
Appendix D-3: Purpose and Rationale for Proposed Appendix A Proposed Zero Emission Motorcycles Regulations CCR, Title 13, section 1958.4, 1958.5, 1958.6, and 1958.7
Appendix D4: Purpose and Rationale for Proposed Appendix B2 TP-934 Test Procedure for Determining Evaporative Emissions from Model Year 2028 and Subsequent On-Road Motorcycles
Appendix D5: Purpose and Rationale for Proposed Appendix A Proposed Amendments to title 13, CCR sections 1958, 1976, 2036, and Proposed Adoption of section 1958.1
Appendix D-6: Purpose and Rationale for Proposed Appendix B3 California Evaporative Emission Standards and Test Procedures for 2001 through 2025 Model Year Passenger Cars, Light-Duty Trucks, Medium-Duty Vehicles, and Heavy-Duty Vehicles and 2001 through 2027 Model Year
Motorcycles”
Appendix E-1: Exhaust Emissions Test Results
Appendix E-2: Evaporative Emissions Test Methodology and Results for the Proposed Amendments
Appendix E-3: Carbon Canister Purge Test Results