text: Army Sustainment at Echelon
  Figure 2-3. Notional area of responsibility command and control of sustainment forces
  THEATER SUSTAINMENT COMMAND
  2-45. The TSC is the Army’s command for the integration and synchronization of sustainment in an AOR.
  The TSC integrates strategic enablers at the operational level. The TSC is assigned to an ASCC and provides
  Title 10 support of Army forces. The TSC manages requirements for sustainment and the physical flow of
  forces, equipment, and cargo to meet the daily operational requirements of the ASCC. Working in
  conjunction with the joint deployment and distribution operations center (JDDOC) and other strategic
  enablers, the TSC establishes priorities, monitors intertheater movements, and identifies and resolves
  problems to reduce interference in the intratheater distribution network. The TSC provides guidance to
  strategic partners when conflicting priorities exist between operational areas. The command ensures the
  information flow from strategic deployment, distribution, and sustainment partners is accurate, timely, and
  adequate to support the actions of theater sustainment forces. The TSC has four operational responsibilities
  to forces in theater:
  • Theater opening.
  • Theater distribution.
  • Sustainment.
  • Theater closing.
  2-46. In the event that the ASCC is assigned responsibility for establishing a joint command for logistics, the
  TSC or its attached ESC with staff augmentation from other Service components is designed to fulfill that
  mission. The JTF's Service component augmentation must follow joint doctrine and, in addition to personnel,
  may also include joint command and control equipment and regional language and cultural experts. Once the
  joint command for logistics is established, it takes time to receive, train, and integrate new members and then
  begin functioning as a cohesive headquarters with common processes, standards, and procedures. For
  additional information on the TSC, see ATP 4-93.
  THEATER PERSONNEL OPERATIONS CENTER
  2-47. The theater personnel operations center (TPOC) is a multifunctional organization assigned to a TSC.
  The TPOC consists of a headquarters section and three divisions: the personnel accountability and systems
  division, the synchronization and integration division, and the postal operations division. In coordination
  with the TSC, the TPOC plans, integrates, and sustains HR and Soldier support systems for the ASCC