The combined rate of all taxes imposed in accordance with this part in any county may not exceed 2 percent. No tax shall be considered to be in accordance with this part if, upon its adoption, the combined rate in the county will exceed 2 percent.
Source:
Section 7251.1, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=RTC§ionNum=7251.1..