US lawCaliforniaStatutesCode hscDivision 26Part 2Chapter 3.439641Cal. HSC § 39641Cal. HSC § 39641Last amended: 2009Year: 2025Length: 18 wordsOfficial source The state board has adopted regulations establishing toxic control measures to limit schoolbus idling and idling at schools.PreviousCal. HSC § 39640NextCal. HSC § 39642