Large fleets that operate 53-foot box-type trailers in California are strongly advised to visit the California Air Resources Board website before July 1, 2011 to register their trailers and take advantage of the flexible phase-in option to comply with California's Tractor-Trailer Greenhouse Gas regulation.


Fleets with 21 or more 53-foot or longer box-type trailers that operate in California, regardless of where they are registered, need to act by July 1 if they want the flexible compliance option.

The purpose of the regulation is to reduce greenhouse gas emissions with the use of aerodynamic equipment and fuel-efficient tires. Large fleets have two options to comply: Either be in full compliance by January 1, 2013, or; take advantage of a longer phase-in option.

To take advantage of the longer phase-in option, large fleets must submit a compliance plan to the California Air Resources Board that includes a list of trailers in the fleet and the scheduled percentage of trailers to be brought into compliance each year. The phase-in option allows fleets up to five years from 2011 through 2015 to phase-in compliance for their California-bound trailers.

Fleet owners can register their trailers, and in some cases their tractors, online at https://secure.arb.ca.gov/ssltrucrs/trucrs_reporting/reporting.php. Owners need to create an account and enter their plan. The plan tells CARB how a company plans to get individual trailers to comply over a period of time.