The board of supervisors of any county may provide for an additional fee for filing
every preliminary notice pursuant to subdivision (a) of Section 8214 of the Civil Code for the exclusive purpose of defraying the cost of implementing and maintaining a system to facilitate compliance with subdivision (b) of Section 8214 of the Civil Code.
Source:
Section 27361.9, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=GOV§ionNum=27361.9..