California Code, Government Code - GOV § 84213

(a) A candidate or state measure proponent shall verify the candidate's or proponent's campaign statement and the campaign statement of each committee subject to the candidate or state measure proponent's control. The verification shall be in accordance with the provisions of Section 81004 except that it shall state that to the best of the candidate or state measure proponent's knowledge the treasurer of each controlled committee used all reasonable diligence in the preparation of the committee's statement. This section does not relieve the treasurer of any committee from the obligation to verify each campaign statement filed by the committee pursuant to Section 81004.

(b) If a committee is required to file a campaign statement or report disclosing an independent expenditure pursuant to this title, a principal officer of the committee or, in the case of a controlled committee, the candidate or state measure proponent or opponent who controls the committee shall sign a verification on a report prescribed by the Commission. Notwithstanding any other provision of this title, the report containing the verification required by this subdivision shall be filed only with the Commission. The verification shall read as follows:

I have not received any unreported contributions or reimbursements to make these independent expenditures. I have not coordinated any expenditure made during this reporting period with the candidate or the opponent of the candidate who is the subject of the expenditure, with the proponent or the opponent of the state measure that is the subject of the expenditure, or with the agents of the candidate or the opponent of the candidate or the state measure proponent or opponent.