Section 6103 does not apply to any fee or charge for official services required by Parts 2 (commencing with Section 1200) 3 (commencing with Section 2000), and 4 (commencing with Section 4000) of Division 2 of the Water Code.
Source:
Section 6103.1, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=GOV§ionNum=6103.1..