California Code, Code of Civil Procedure - CCP § 995.670

(a) This section applies to a bond executed, filed, posted, furnished, or otherwise given as security pursuant to any statute of this state or any law or ordinance of a public agency.

No public agency shall require an admitted surety insurer to comply with any requirements other than those in Section 995.660 whenever an objection is made to the sufficiency of the admitted surety insurer on the bond or if the bond is required to be approved.

(b) For the purposes of this section, “public agency” means the state, any agency or authority, any city, county, city and county, district, municipal or public corporation, or any instrumentality thereof.