Indefinite Delivery Indefinite Quantity (IDIQ) Contract: A contract for supplies/services that does not require or specify a fi– quantity of supplies/services (other than a minimum or maximum quantity) and/or is used when the exact times of future deliveries are not known at the time of contract award. IDIQ contracts are also known as delivery order or Task Order contracts that provide for the issuance of orders for the performance of tasks during the period of the contract.