California Air Resources Board

On September 1, 2010, the California Air Resources Board’s (ARB’s) Tire Pressure Regulation took effect.  The purpose of this regulation is to reduce greenhouse gas emissions from vehicles operating with under inflated tires by inflating them to the recommended tire pressure rating.  The regulation applies to vehicles with a gross vehicle weight rating (GVWR) of 10,000 pounds or less.  Automotive service providers must meet the regulation’s following requirements:

• Final Regulation
• View Frequently Asked Questions (push the Download button to the left)
• Check and inflate each vehicle’s tires to the recommended tire pressure rating, with air or nitrogen, as appropriate, at the time of performing any automotive maintenance or repair service.
• Indicate on the vehicle service invoice that a tire inflation service was completed and the tire pressure measurements after the service were performed.
• Perform the tire pressure service using a tire pressure gauge with a total permissible error no greater than + two (2) pounds per square inch (psi).
• Have access to a tire inflation reference that is current within three years of publication.
• Keep a copy of the service invoice for a minimum of three years, and make the vehicle service invoice available to the ARB, or its authorized representative upon request.