(a) Description. A definite-quantity contract provides for delivery of a definite quantity of specific supplies or services for a fixed period, with deliveries or performance to be scheduled at designated locations upon order.

(b) Application. A definite-quantity contract may be used when it can be determined in advance that (1) a definite quantity of supplies or services will be required during the contract period and (2) the supplies or services are regularly available or will be available after a short lead time.