California Code, Government Code - GOV § 9350.6

(a) “Compensation” and “salary” mean the remuneration paid in cash out of funds controlled by the state, excluding mileage, reimbursement for expenses incurred in the performance of official duties, any per diem allowance paid in lieu of those expenses and as limited by Section 9359.05.

(b) Notwithstanding any other provision of this chapter, for purposes of computing a retirement allowance or benefit of a Member of the Legislature, the salary used shall be the highest salary received by the Member of the Legislature while in office.

(c) For purposes of calculating a retirement allowance or benefit pursuant to subdivision (b) of Section 9359.1 for a person who first enters this system on or after January 1, 2008, as the Insurance Commissioner or as an elective officer of the state whose office is provided for by the Constitution other than a judge or a Member of the Senate or Assembly, the compensation or salary used shall be the highest average salary received by the member during any consecutive 12-month period of service.