Mobile Sources Program Portal
This page last reviewed August 21, 2014
Background:ARB is responsible for developing statewide programs and strategies to reduce the emission of smog-forming pollutants and toxics by mobile sources. These include both on- and off-road sources such as passenger cars, motorcycles, trucks, busses, heavy-duty construction equipment, recreational vehicles, marine vessels, lawn and garden equipment, and small utility engines.
Please select one of the following five major stakeholder categories or click on our A - Z Index to navigate this website.
- Vehicle / Equipment Operators
- Advanced Clean Cars
- Technology and Fuels Assessments
For more information, please click on any of the above areas, or visit our
Contacts webpage, or you may call toll-free 1-800-242-4450.
For any diesel related inquiries,
please call 1-866-6DIESEL (or 1-866-634-3735).
To keep informed of ARB activities, please consider joining one or more of the ARB's Mobile Sources Related E-mail Lists.