On-Road Motorcycle Regulation
This page last reviewed June 28, 2016
ARB adminsters a program for reducing emissions from highway
motorcycles. Authority for controlling emissions from highway
motorcycles is established in sections
1958 (exhaust) and 1976 (evaporative), title 13, California Code
of Regulations (CCR). The California exhaust emission test procedures
are adopted from the U. S. Environmental Protection Agency's (U.S.
exhaust test procedures in title 40, Code of Federal Regulations, Part
86, subparts E and F.
Requirements for highway motorcycle certification include provisions from demonstrating compliance with the applicable emission standards using specific test procedures, as well as emission labeling and warranty obiligations.
What's New...A public workshop to discuss a draft proposal to regulate evaporative emissions from Off-Highway Recreational Vehicles (OHRVs) and On-road Motorcycles will be held on April 20, 2010 in El Monte. The workshop documents can be found here: Workshop Notice, Agenda, Proposed Regulation Summary, Proposed Test Procedures Summary ARB Presentation
A public workshop discussing future evaporative control measures for on-road motorcycles was held on January 15, 2009 in El Monte. The presentation can be viewed here: On-road Test Plan Presentation.
In January 2009, ARB proposed regulatory amendments involving highway motorcycle aftermarket critical emission control parts.
Current Regulations and Test Procedures
- Title 13, CCR, §1958 (exhaust regulations)
- Title 13, CCR, §1976 (evap regulations)
- U.S, EPA Highway Motorcycle exhaust emission test procedures
- California Evaporative Emission Test Procedures, adopted August 5, 1999; last amended October 17, 2007.
2006 Technical Review
A 2006 Review of the 1998 Amendments to the California On-Road Motorcycle Regulations assessed the progress made by manufacturers to meet 2004 and 2008 on-road motorcycle emission requirements.
ARB identified highway motorcycles as a potential source of air pollution which could be reduced cost-effectively in order to satisfy requirements of the 1994 California State Implementation Plan (SIP). The SIP required reductions in air pollution from a wide variety of mobile, stationary, and area-wide sources.
- Changes to Regulations for On-Road Motorcycles - An ARB Fact Sheet
- Formal Regulatory Documents
- October 7, 1998 Workshop Notice to Discuss Proposed Changes to the On-Road Motorcycle Regulation
- July 1, 1998 Workshop Notice to Discuss Proposed Changes to the On-Road Motorcycle Regulation
Where Can I Get More Information?
To get more information regarding exhaust and evaporative emissions, please contact Scott Bacon at (916) 322-8949.