Idling – The regulation prohibits unnecessary idling for more than five minutes. Some exceptions apply, such as idling to accomplish work for which the vehicle was designed, and idling to bring a machine system to operating temperature. As of March 1, 2009, fleets with more than 2,500 horsepower (hp) of affected vehicles must also have a written idling policy.

Reporting and Labeling – All fleets were required to report by August 1, 2009. Fleets that have not yet reported should do so as soon as possible. The ARB?EUR??,,????'?????<https://secure.arb.ca.gov/ssldoors/doors_reporting/reporting.php.

A fleet may request a user account and enter their vehicle and engine information online. After the fleet inventory is provided to the ARB, each vehicle will receive an ARB-assigned equipment identification number (EIN). The fleet may have labels made with the EINs and apply the labels to the vehicle, or the EIN may be stenciled onto the vehicle, within 30 days.

Performance Requirements – Beginning in 2010, large fleets must begin meeting fleet emissions requirements.Medium fleet requirements start in 2013, while small fleet requirements start in 2015. Small fleets have the least stringent requirements.

Further Information – For fact sheets and answers to frequently asked questions and a link to the electronic reporting system, plus reporting guidance documents, please visit www.arb.ca.gov/ordiesel or call ARB?EUR??,,????'?????<