4-54. In-transit visibility is the ability to track the identity, status, and location of DOD units, and non-unit cargo (excluding bulk petroleum, oils, and lubricants) and passengers; patients; and personal property from origin to consignee or destination across the range of military operations (+JP 4-01.2). It is critical for tracking the identity, status and location of all DOD units and cargo, and it provides critical input to mission command information systems. Successful in-transit visibility begins during the predeployment phase and continues throughout operations. Accurate weighing, measurement, marking, and tagging of all cargo, containers, and equipment directly contributes to a more complete and timely operational picture for the commander. (See JP 4-01.2 and ATP 3-35 for more information on in-transit visibility.)