48 C.F.R. § 47.207-6
(a)
(1) The contracting officer shall include in the solicitation a statement that the charges in the contract shall not exceed the contractor's charges for the same service that is—
(c) The following guidelines apply to the composition of a tabulation of transportation or of transportation-related services and their rate (price) bases:
(5) Multiple shipments from one origin. If multiple shipments will be tendered at one time to the contractor for delivery to two or more consignees at the same destination, request the rate applicable to the aggregate weight. If such shipments are for delivery to various destinations along the route between origin and last destination, request the rate applicable to the aggregate weight and a stopoff charge for each intermediate destination.