Cal. Public Utilities Code § 21669.4

(a) The violation of the noise standards by any aircraft shall be deemed a misdemeanor and the operator thereof shall be punished by a fine of one thousand dollars ($1,000) for each infraction. (b) It shall be the function of the county wherein an airport is situated to enforce the noise regulations established by the department. To this end, the operator of an airport shall furnish to the enforcement authority designated by the county the information required by the department’s regulations to permit the efficient enforcement thereof. The operator of each airport shall reimburse the county for its costs of implementing the airport noise regulations contained in Article 8 (commencing with Section 5050) of subchapter 6 of Title 4 of the California Administrative Code, which shall, for purposes of subdivision (c), credit the operator for any amounts received from penalties assessed for violations at such airport. Upon request of the operator, the department shall review and shall determine the reasonableness of such costs, and such costs may be considered in fixing any airport user fees. (c) Penalties assessed for the violation of the noise regulations shall be used first to reimburse the General Fund for the amount of any money appropriated to carry out the purposes for which the noise regulations are established, and second be used in the enforcement of the noise regulations at participating airports.