California Code, Education Code - EDC § 22008

(a) No action may be commenced by or against the board, the system, or the plan more than three years after all obligations to or on behalf of the member, former member, beneficiary, or annuity beneficiary have been discharged.

(b) If the system makes an error that results in incorrect payment to a member, former member, beneficiary, or annuity beneficiary, the system's right to commence recovery shall expire three years from the date the incorrect payment was made.

(c) If an incorrect payment is made due to lack of information or inaccurate information regarding the eligibility of a member, former member, beneficiary, or annuity beneficiary to receive benefits under the Defined Benefit Program or Defined Benefit Supplement Program, the period of limitation shall commence with the discovery of the incorrect payment.

(d) Notwithstanding any other provision of this section, if an incorrect payment has been made on the basis of fraud or intentional misrepresentation by a member, beneficiary, annuity beneficiary, or other party in relation to or on behalf of a member, beneficiary, or annuity beneficiary, the three-year period of limitation shall not be deemed to commence or to have commenced until the system discovers the incorrect payment.

(e) The collection of overpayments under subdivisions (b), (c), and (d) shall be made pursuant to Section 24617.