California Code, Health and Safety Code - HSC § 103730

A fee of twenty dollars ($20) for each individual being adopted shall be paid to the clerk of the court at the time of filing the petition in an adoption proceeding, except for agency adoptions in which the adoption fee is waived and a statement from the agency to this effect is filed with the petition. The fee shall be transmitted to the State Treasury, as provided in Section 68085.1 of the Government Code, for deposit in the Health Statistics Special Fund for the services required by statute of the office of the State Registrar of Vital Statistics.