Cal. Unemp. Ins. Code § 1533

Except as otherwise provided in this chapter, money in the clearing and benefit accounts may be deposited by the Treasurer, under the direction of the director, in any bank, savings and loan association, or public depositary in which public funds of the state may be deposited, but no public deposit insurance charge or premium shall be paid out of the fund. Money in the clearing and benefit accounts shall not be commingled with other state funds, but shall be maintained in a separate account on the books of the depositary. Such money shall be secured by the bank or public depositary to the same extent and in the same manner as required under Chapter 4, Part 2, Division 4, Title 2 of the Government Code if deposited in a bank or public depository, not a savings and loan association or to the same extent and in the same manner as required under Chapter 4.5 (commencing with Section 16600) of Part 2 of Division 4 of Title 2 of the Government Code if deposited in a savings and loan association and collateral pledged shall be maintained in a separate custody account.