School Bus Idling Airborne Toxic Control Measure
This page last reviewed Janurary 30, 2012
The California Air Resources Board (ARB) approved the Airborne Toxic Control Measure (ATCM) (Amended Regulation)
limiting school bus idling and idling at or near schools to only when necessary for safety or operational concerns. It has been in effect since
July 16, 2003. The program targets school buses, school pupil activity buses, youth buses, paratransit vehicles, transit buses,
and heavy-duty commercial motor vehicles that operate at or near schools. In 2009, Senate Bill 124, Oropeza (SB 124) acknowledged
and codified ARBs ATCM limiting school bus idling raising the minimum penalty for a violation of this rule from $100 to $300.
The bill also clarifies local peace officer and air district authority to enforce the state's school bus idling program.
SB 124 became effective on January 1, 2010, and the existing regulation was revised to reflect this change.
Please see the Historic webpage for the background information on the School Bus Idling ATCM.
- California Air Toxics Program
- School Bus Idling Fact Sheet
- California's Diesel Risk Reduction Plan
- Children's Environmental Health Protection Program
- U.S. EPA's Diesel Exhaust Site-Health Effects
- EHHI's Diesel Exhaust and Children Site
- Children's School Bus Exposure Study
- Diesel Fuel Program
- Lower-Emission School Bus Program
- Mobile Source Programs Related to Diesel Engines
- School Bus Idling ATCM Rulemaking Project Profile
- KnowZone School Bus Retrofit and Replacement Account
You can use any of the following options to report an idling violation:
For more information regarding the ATCM to Limit School Bus Idling and Idling at Schools, please contact Katya Krichevsky at (916) 323-0164.
School Bus Idling List Serve - You can subscribe or unsubscribe to the ARB School Bus Idling ATCM List Serve created to notify interested parties about changes to this regulation.