California Code, Government Code - GOV § 75032

Every judge who has retired or who retires pursuant to Section 75025 before or after September 11, 1957, shall, during the remainder of his or her life, receive an allowance equal to one-half the salary payable, at the time payment of the allowance falls due, to the judge holding the judicial office to which he or she was last appointed or elected by the people.  The allowance shall be paid by the state at the times and in the manner provided for the payment of salaries of justices of the Supreme Court.

This amendment to this section enacted by the Legislature at its 1957 Regular Session does not give any retired judge a claim against the state for any increase in retirement allowance or other benefit for time prior to September 11, 1957.