text: Chapter 4
  MILITARY POSTAL SERVICE AGENCY
  4-61. The Secretary of the Army is the DOD executive agent for the MPS. The MPSA operates under that
  authority, direction, and control to oversee the MPS, which operates globally as an extension of the USPS
  consistent with public law, federal regulations, and international and domestic agreements providing postal
  services to all DOD patrons in deployed and non-deployed environments. The MPSA is the single DOD point
  of contact with USPS HQ. Refer to ATP 1-0.2 for specific responsibilities of the MPSA.
  JOINT MILITARY POSTAL ACTIVITY
  4-62. The JMPA is a subordinate organization of MPSA collocated at the USPS international and military
  service center and is the single point of contact with the USPS at the postal gateways. The JMPA coordinates
  mail routing schemes, surface containers, supply and equipment requests, and facilitates processing and
  transportation of military mail. Refer to ATP 1-0.2 for specific responsibilities of the JMPA.
  DEPARTMENT OF THE ARMY POSTAL
  4-63. The DA Postal provides oversight of all Army postal functions as part of the MPS to ensure efficient
  postal services are provided to all authorized personnel and activities within CONUS and outside of CONUS
  during LSCO and other operations. Refer to ATP 1-0.2 for specific responsibilities of the DA Postal.
  SERVICE POSTAL MANAGER
  4-64. The SPM implements and coordinates postal operations throughout the joint operations area (JOA)
  under the authority of the combatant commander or joint force postal staff, and serves as the liaison between
  the operational area and MPSA. Refer to ATP 1-0.2 for specific responsibilities of the SPM.
  ASCC G-1/AG
  4-65. The ASCC G-1/AG is responsible for postal operations within their AO. While the G-1/AG does not
  execute postal operations, it is the agency responsible for developing postal policies, priorities, guidelines,
  and monitoring postal operations within the theater. The ASCC G-1/AG accomplishes this in coordination
  with the TSC/ESC and TPOC. All policies developed should adhere to joint policy guidelines. Refer to ATP
  1-0.2 for specific postal operations responsibilities of the ASCC G-1/AG.
  CORPS G-1/AG AND DIVISION G-1
  4-66. Corps G-1/AGs and division G-1s monitor unit mailroom operations for their assigned or attached
  units. If serving as the Army Forces G-1, the corps G-1/AG and division G-1 performs the duties and
  responsibilities of the theater G-1/AG. The corps G-1/AG and division G-1 do not have postal assets;
  however, the corps and division as a command does. All postal issues or requirements are coordinated directly
  with the supporting APO or HROB within the supporting sustainment brigade. Refer to ATP 1-0.1 for
  specific unit mailroom responsibilities of the corps G-1/AG and division G-1.
  BRIGADE AND BATTALION S-1
  4-67. Brigade and battalion S-1s develop and coordinate unit mailroom operations for their respective
  assigned and attached units. Refer to ATP 1-0.1 for specific unit mailroom responsibilities of the brigade and
  battalion S-1.
  TPOC, POSTAL OPERATIONS DIVISION
  4-68. The TPOC POD plans, integrates, synchronizes, and coordinates postal operations support within a
  theater of operations by serving as the bridge between the ASCC G-1/AG and the TSC. The TPOC POD
  provides postal assistance and technical guidance to the MMT and HROBs and ensures they comply with
  postal operations policies and regulations. The TPOC POD directly supports the execution of theater postal
  policies and the EPW mail mission. The division identifies appropriate resources to support the theater postal