On-Road Motorcycles | California Air Resources Board

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On-Road Motorcycles

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On-Road Motorcycles (ONMC) include two- and three-wheeled motor vehicles having a curb weight of less than 1749 pounds, which are intended for use on public roads. The California Air Resources Board (CARB) administers a program to reduce the air quality impact from this vehicle category, and is currently in the regulatory development process with the goal of developing more stringent ONMC standards.
More about this program

Email Updates

Keep up to date with the latest information regarding the On-Road Motorcycle Program.

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Executive Orders

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Regulations & Test Procedures

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Regulatory Development

Regulatory History

Certified Aftermarket Parts List

Mobile Source Strategy

State Implementation Plan

Technical Working Groups

Meetings & Workshops

Zero-Emission Motorcycle Incentives

Useful Links

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Aftermarket Parts Certification

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Zero-Emission Motorcycles

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Motorcycle Rider Survey

External Resources

DMV Motorcycle Resources

Resources for motorcyclists

Clean Vehicle Rebate Project

Find out if you qualify for a clean vehicle rebate

US EPA Resources for Vehicles & Engines

Learn more about US EPA regulatory requirements