California Code, Health and Safety Code - HSC § 80045

(1) A sworn verification of the claim to the best of the information known to the claimant or within the claimant's possession or control.

(2) All records and information pertaining to the site and relevant to the ownership, operation, or control of the site, or to the ownership, possession, generation, treatment, transportation, storage or disposal of a hazardous substance, pollutant, or contaminant at or in connection with the site, within the possession or control of the claimant, including, but not limited to, the information specified in subdivision (a) of Section 78440.

(3) Certification of all response costs that have been, or will be, incurred at the site by the potentially responsible party, and an estimate of the total cost of completion of the approved final remedy at the site.

(1) After the final remedy is selected under Article 12 (commencing with Section 79195) of Chapter 5.

(2) After the department or the regional board determines that the response action is complete. The department or the regional board shall not include operation and maintenance activities in determining whether the response action is complete under this paragraph.