California Code, Code of Civil Procedure - CCP § 1605

The Governor shall certify to the Comptroller General or other proper officer of the United States that the law of this State provides effective means whereby the United States shall be compensated at reasonable times for this State's proportionate share of the actual and necessary cost of examining records and for reporting information and whereby the United States shall be held harmless in the event of claim for property delivered to this State in accordance with the provisions of this chapter.

Such certification shall be made on the thirtieth day of June next following the effective date of any federal statute requiring such certification.