Cal. Pub. Resources Code § 4179.5
The Attorney General may at any time release all or any portion of the property subject to a lien imposed pursuant to Sections 4178 and 4179 from the lien or subordinate the lien to other liens and encumbrances if the Attorney General determines that the amount owed is sufficiently secured by a lien on other property or that the release or subordination of the lien will not jeopardize the collection of the amount owed. A certificate by the Attorney General to the effect that any property has been released from the lien or that the lien has been subordinated to other liens and encumbrances shall be conclusive evidence that the property has been released or that the lien has been subordinated as provided in the certificate.
Ca. Pub. Res. Code § 4179.5