Cal. Gov. Code § 9357.45
Notwithstanding any other provisions of this chapter, a person who was a member and entitled to be credited with 10 or more years of service as a Member of the Senate or Assembly and who withdrew his or her accumulated contributions prior to October 1, 1961, and after discontinuance of service, may, at any time before December 31, 1965, redeposit in the fund in one sum an amount equal to the accumulated contributions withdrawn plus the interest that would have been credited to those accumulated contributions had they not been withdrawn, using the rate of interest in effect at the time of redeposit.
Upon the redeposit the person shall become a member with the rights provided under this chapter to a member who elected under Section 9355.2 to allow his or her contributions to remain in the fund.
Ca. Gov. Code § 9357.45