(1) “Current Closure Cost Estimate” means the most recent estimate prepared in accordance with Chapter 6, Article 6, section 18442.

(2) “Depository Trust Fund” means the fund established in conjunction with a surety bond or letter of credit and that meets the requirements of section 18474 of this Article.

(3) “Enterprise Fund” means a fund established to account for the financing of self-supporting activities of a government unit that renders services on a user-fee basis.

(4) “Government Securities” means financial obligations issued by a federal, state or local government, including general obligation bonds, revenue bonds, and certificates of participation.

(5) “Letter of Credit” means a contract by which the issuing institution promises to extend credit on behalf of an operator to the Board or its designee, on presentation of the mechanism in accordance with its terms.

(6) “Provider of financial assurance” means an entity, other than an operator, that provides financial assurance to an operator of a major waste tire facility, including but not limited to a trustee, an institution issuing a letter of credit, or a surety company.

(7) “Surety Bond” means a contract by which a surety company promises that, if the operator fails to perform required closure activities, the surety company will be liable for the operator's responsibilities as specified by the bond.

(8) “Trust fund” means a contract by which the operator transfers assets to a trustee to hold, on behalf of the Board or its designee, to pay closure costs.