Cal. Welf. & Inst. Code § 11466.23

(a) It is the intent of the Legislature to comply with the federal requirements of the Improper Payments Act of 2002 with respect to the remittance of the federal share of foster care or adoption assistance overpayments.
(b) For the purposes of this section, “foster care or adoption assistance overpayment” means any amount of aid paid to which a foster care provider or adoption assistance recipient was not entitled, including any overpayment identified by a foster care provider as described in Section 11400, or federal Adoption Assistance Program recipient as described in Chapter 2.1 (commencing with Section 16115) of Part 4, and on and after the date that the director executes a declaration pursuant to Section 11217, any federal Kin-GAP aid paid to which a related guardian was not entitled, including any overpayment identified by a federal Kin-GAP recipient as described in Article 4.7 (commencing with Section 11385).
(c) Counties shall be required to remit the appropriate amount of federal funds upon identification of the overpayment, following the completion of due process.
1. (1) For overpayments identified prior to July 1, 2012, counties shall not be required to repay the overpayment when any of the following occurs:
  1. (A) The amount is legally uncollectible, including any amount legally uncollectible pursuant to Section 11466.24.
  2. (B) The cost of collection exceeds the overpayment.
  3. (C) The provider is no longer in business or licensed by the department.
2. (2) For overpayments identified prior to July 1, 2012, remittance of overpayments of federal AFDC-FC, federal Kin-GAP, and federal AAP funds not excluded by paragraph (1) shall be shared by the state and the counties based on the following sharing ratios:
  1. (A) For federal AFDC-FC funds, the sharing ratios described in subdivision (c) of Section 15200.
  2. (B) For federal Kin-GAP funds, the sharing ratios described in Section 10101.2.
  3. (C) For federal AAP funds, the sharing ratios described in subdivision (e) of Section 15200.
(d)
1. (1) For overpayments identified on and after July 1, 2012, the county shall pay 100 percent of the cost for remittance of all overpayments of federal AFDC-FC, federal Kin-GAP, and federal AAP funds.
2. (2) For overpayments identified prior to July 1, 2012, upon actual collection of any overpayments from providers or recipients, the county shall ensure that the total amount reimbursed to the state reflects the federal and state share of the overpayment costs, as specified. All overpayments of federal AFDC-FC, federal Kin-GAP, and federal AAP funds included in paragraph (1) of subdivision (c) shall be repaid completely with state funds.
3. (3) For overpayments identified on and after July 1, 2012, after remitting the federal share, the county shall retain any funds collected by the county from overpaid providers or recipients.
4. (4) Nothing in this section shall inhibit existing county authority to collect overpayments.
5. (5) Nothing in this section shall inhibit existing county responsibility to remit voluntary overpayments upon collection.
(e)
1. (1) The department shall adopt regulations to implement this section by December 31, 2008. Notwithstanding Chapter 3.5 (commencing with Section 11340) of Part 1 of Division 3 of Title 2 of the Government Code, the department, in consultation and coordination with the County Welfare Directors Association, may adopt emergency regulations to implement this section.
2. (2) The adoption of emergency regulations pursuant to subdivision (a) shall be deemed to be an emergency and necessary for the immediate preservation of the public peace, health, safety, or general welfare. The emergency regulations authorized by this section shall be submitted to the Office of Administrative Law for filing with the Secretary of State and shall remain in effect for no more than 180 days, by which time final regulations shall be adopted.
(f) The department may only require counties to remit payment of the federal share for overpayments upon identification that occur on or after the effective date of regulations adopted pursuant to this section.