(a) The fee for filing a marriage certificate pursuant to Part 4 (commencing with Section 500) of Division 3 of the Family Code is fourteen dollars ($14), to be collected at the time an authorization for the performance of the marriage is issued or a blank authorization form is obtained from the county clerk pursuant to Part 4 (commencing with Section 500) of Division 3 of the Family Code. Four dollars ($4) of the fee shall be paid to the State Registrar of Vital Statistics. One dollar ($1) of the fee shall be paid to the county treasurer and shall be used to defray any local costs incurred pursuant to Part 4 (commencing with Section 500) of Division 3 of the Family Code.
(b) Notwithstanding subdivision (a), in addition to the amount authorized by subdivision (a) the county clerk may impose an additional amount, not to exceed three dollars ($3), if he or she determines that the additional amount is necessary to defray local costs.