(a) After receiving and approving certification of closure from the operator as specified by § 21880, the CIWMB shall notify the operator and the provider of financial assurance in writing, that he or she is no longer required to demonstrate financial responsibility for closure and third party operating liability claims, pursuant to this Chapter, at the particular disposal facility pursuant to this Article.

(b) When operational control of a disposal facility is transferred, the existing operator shall remain subject to the requirements of this Chapter until the new operator provides acceptable financial assurances to the CIWMB.

(c) When the CIWMB determines that an operator has completed postclosure maintenance in accordance with the applicable postclosure plan, the CIWMB shall notify the operator in writing that it is no longer required to maintain financial assurance for postclosure maintenance of the particular solid waste landfill pursuant to this Chapter.

(d) When the CIWMB releases an operator that is using a trust fund or a similar financial assurance mechanism in conjunction with an enterprise fund or government securities from the requirements of this Chapter, the CIWMB shall authorize the termination of the trust fund or the similar mechanism.