If, in the opinion of the board, the transit operation revenues will not be sufficient for any and all lawful purposes the board shall levy a tax for such purpose or purposes and fix the amount of money necessary to be raised therefor by taxation as part of the general tax levy as set forth in Section 98280.
Source:
Section 98280.5, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PUC§ionNum=98280.5..