Each payment of a retirement allowance, after the effective date of this section, to a beneficiary who retired prior to September 20, 1947, shall be calculated according to the provisions of this chapter as they existed on September 20, 1947.
Gov. Code § 31738 — under California Gov. Code.
Gov. Code § 31738
Each payment of a retirement allowance, after the effective date of this section, to a beneficiary who retired prior to September 20, 1947, shall be calculated according to the provisions of this chapter as they existed on September 20, 1947.