If public transit fares are increased at any time while the vehicle license fee surcharge authorized by this part is in effect, the surcharge may not continue to be imposed.
This part shall become inoperative on the date those fares are increased and shall be repealed on January 1 next following that date. The board of supervisors shall notify the department of any increase in public transit fares occurring while the surcharge is in effect.
Source:
Section 11152.5, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=RTC§ionNum=11152.5..