Historic Page: School Bus Idling Airborne Toxic Control Measure

This page last reviewed January 31, 2012



The California Air Resources Board (ARB) approved an airborne toxic control measure (ATCM) limiting school bus idling and idling at or near schools to only when necessary for safety or operational concerns. The ATCM became effective on July 16, 2003. This page covers the historic information related to the adoption of the regulation.

US EPA Clean School Bus USA Program

The EPA's Clean School Bus USA program announced a new video designed to train school bus drivers and pupil transportation officials on how reduced engine idling can improve the health of students and save money by cutting down on fuel costs. The five-minute video is available free of charge from the National Service Center for Environmental Publications (NSCEP). Phone orders can be placed by calling (800)490-9198 or (513) 489-8190. Business hours are Monday through Friday, 7:30 a.m. - 5:30 p.m. (EST). After hours you may leave a voice mail order. For information and links for ordering click here. You may also e-mail to request publications.

Posted October 28, 2004

Board Update on Implementation and Compliance

Posted July 16, 2003

ATCM in Effect

Posted June 16, 2003

OAL Approved ATCM and Filed with Secretary of State

Posted May 15, 2003

OAL Package Sent

Posted March 7, 2003

Notice of Proposed Modifications Issued

Posted December 12, 2002

Board Adopted Hearing