In sections 253h, 253i, and 253j of this title:

(1)

The term ''task order contract'' means a contract for services that does not procure or specify a firm quantity of services (other than a minimum or maximum quantity) and that provides for the issuance of orders for the performance of tasks during the period of the contract.

(2)

The term ''delivery order contract'' means a contract for property that does not procure or specify a firm quantity of property (other than a minimum or maximum quantity) and that provides for the issuance of orders for the delivery of property during the period of the contract