Cal. Health & Safety Code § 51640

There is hereby continued in existence a bond insurance reserve account in the insurance fund to secure commitments under contracts to insure bonds. The agency shall take all reasonable steps to ensure that the bond reserve account is continuously maintained at not less than the bond reserve requirement. The agency shall not cause sums to be withdrawn from the bond insurance reserve account in amounts which would reduce the moneys therein to less than the bond reserve requirement, except as necessary to satisfy liabilities arising under contracts of bond insurance. In the event that the bond insurance reserve account is reduced to less than the bond reserve requirement, the agency shall cease making contracts of bond insurance until the account has been restored to satisfy that requirement.