The commission, in consultation with the Department of Transportation, shall adopt rules and regulations prescribing uniform standards regarding the time after the warning signal begins at a railroad crossing at which traffic enforcement shall begin, after public hearings and consultation with transit districts or transportation commissions and multicounty rail transit entities established under Division 12 (commencing with Section 130000), that provide rail transportation.
Source:
Section 1201.1, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PUC§ionNum=1201.1..