Mobile Sources Program - Consumers Portal

This page last reviewed January 28, 2011

The Air Resources Board sets engine standards for mobile sources in California. This includes everything from diesel trucks and buses to lawn and garden equipment. Cleaner gasoline and diesel fuels, in combination with tighter engine standards, make cars and other mobile sources in California the cleanest in the world. Although, it is important to recognize that emission levels will still vary between vehicles due to differences in emissions standards and emission reduction technologies. So, stay informed and make the clean air decision.

If you have questions or see a smoking vehicle call 1-800-END-SMOG.

What's New:

• If you are thinking of buying a new car in California, our driveclean.ca.gov website provides information on all cars certified in California starting in 2000.
• The Environmental Performance Label is a new tool that will help you choose the cleanest vehicles available.

Frequently Asked Questions:

• How can you bring a vehicle into California from out-of-state? How about a Canadian vehicle?
  
• What are the current policies for carpool lane access?
• What are the requirements for Aftermarket, Performance and Add-On Parts?
• How do I find out about the vehicle scrap programs in California?
• What are ARB's activiteis with Advanced Clean Cars?
  
• What are ARB's activities with Climate Change?
• Where can I find out how to fuel my alternative fuel vehicle?
• Where can I find more information about Battery and Fuel Cell Electric Vehicles?
• What is happening with the California Hydrogen Highway Network
• What should I know about off-road recreational vehicles?
• What should I know about purchasing watercraft?
• What are California's passenger car and light-duty truck requirements?
  • Climate change standards for motor vehicles
  • Low emissions vehicles
  • Zero emission vehicles

Incentives:

• DriveClean.ca.gov provides information on all car and truck incentives.
• Learn about other incentives and grant programs are available for clean vehicles.
• ARB is developing easier access to loan opportunities 

Background:

• Visit DriveClean.ca.gov to find the cleanest vehicles sold in California.
• Get information about Smog Check
• Get tips for driving healthy at DriveHealthy.com
• Learn about ARB's research and studies re: mobile sources of air pollution.