California Code, Financial Code - FIN § 6652

(a) Upon the filing with an association by the savings account holder of record as shown by the books of the association, or by the holder's legal representative, of an affidavit to the effect that the evidence of account, if any, has been lost or destroyed, and that the account has not been pledged or assigned in whole or in part, the association shall issue a new evidence of account, if applicable, in the name of the holder of record.

(b) The new evidence of account may state that it is issued in lieu of the one lost or destroyed and that the association shall not be liable for the loss or destruction of the original evidence of account.

(c) The association may require an indemnification or a bond in an amount it deems sufficient to indemnify the association against any loss which might result from the issuance of a new evidence of account under this section.