On-Road Motorcycle Regulation

Background

ARB adminsters a program for reducing emissions from highway motorcycles. Authority for controlling emisions from highway motorcycles is established in sections 1958 (exhaust) and 1976 (evaporative), title 13, California Code of Regulations (CCR). The California exhaust emisison test procedures are adopted from the U. S. Environmental Protection Agency's (U.S. EPA'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 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.

Where Can I Get More Information?

To get more information, please contact Sharon Lemieux, Manager, Emission Research Section, at (626) 575-7067, or via e-mail at sclemieu@arb.ca.gov.

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