Block 17

Block 5—Air Dimension. Enter the code A when any single dimension (length, width, or height) is less than 72 inches. When any single dimension is greater than 72 inches, enter the code Z. When using code Z, enter the actual dimension as an additional entry in the Remarks section. Block 10—Transportation Control Number (TCN). The TCN is a 17-character data element assigned to control and manage each shipment unit throughout the transportation movement pipeline. See DOD 4500.32-R for more information about TCN. Block 12—Transportation Priority (TP). There are four TPs used on the TCMD. They are determined by the issue priority designator (IPD). Block 17—Transportation Account Code (TAC). The TAC is a four-position alphanumeric code. The first position identifies the activity that will be charged (billed) for all services for movement transportation of the item within the DTS. All Navy-funded shipments are identified by the letter N in the first position of the TAC. The second, third, and fourth positions are assigned and controlled by the sponsoring service/agency. These codes are used to identify the purpose code (second position), the specific fund to be charged (third position), and the type of cargo or commodity being shipped (fourth position). For example, a shipment in response to a requisition with a document number V12345-0001-G001 and cognizance symbol 7R material would have TAC code N217 assigned. When shipping the retrograde, using the same document number, the TAC code will be N517. Block 22—Pieces. Enter the number of pieces in the shipment unit. Block 23—Weight. Enter the total weight of the shipment unit, rounded off to the next higher whole number. Block 24—Cube. Enter the total cube of the shipment unit, rounded off to the next higher whole number. 7-30