text: Sustainment
  Sustainment preparationof the operational environment is the analysis to determine infrastructure, physical
  environment, and resources in the operational environment that will optimize or adversely impact friendly
  forces means for supporting and sustaining the commander’s operations plan (ADP 4-0).
  9-53. The BCT S-4 is the lead planner for sustainment within the BCT staff. The BCT S-1, the surgeon, and
  chaplain assist the S-4 in developing the BCT concept of support. Representatives from these and other
  sections form a sustainment planning cell at the BCT main command post (CP) ensure sustainment plans are
  integrated fully into all operations planning. Sustainment standard operating procedures (SOPs) within the
  BCT should be the basis for sustainment operations, with planning conducted to determine specific
  requirements and to prepare for contingencies. The BCT S-4 is responsible for producing the sustainment
  paragraph and annexes of the operation order. The BSB support operations officer may assist the S-4 in
  writing Annex F of an operation order.
  Concept of Support
  9-54. The BCT S-4 is responsible for developing the BCT sustainment concept of support. The BCT
  sustainment concept of support describes how sustainment support will be executed during the operation.
  Once approved by the BCT commander, the BCT S-4 briefs the concept of support to all commanders and
  staffs to ensure a shared understanding across the BCT. The BSB commander executes the BCT sustainment
  concept of support. The BSB commander (through the support operation officer) is responsible for the BSB’s
  concept of support, which will ultimately tell subordinate BSB units (to include FSCs) how they are going to
  execute the BCT concept of support.
  9-55. The sustainment concept of support is a written andgraphical representation of how Army logisticians
  intend to provide sustainment and integrate support with the maneuver force’s concept of operations for an
  operation or mission. The sustainment concept of support is the BSB’s concept of operations for an operation
  or mission. It identifies the logistics requirements for an operation, the priority of support by phase of the
  operation (established by the BCT commander), and the forecasted receipt of resupply from the DSB.
  9-56. The sustainment concept of support establishes priorities of support (by phase or before, during, and
  after) for the operation and gives the BSB commander the authority to weight support organizations and task
  organize accordingly. The commander sets these priorities for each level in the commander’s intent statement
  and in the concept of operations. Priorities include such items as personnel replacements; maintenance and
  evacuation by unit and by system (air and surface systems are given separate priorities); fuel and ammunition;
  road network use by unit and commodity; and any resource subject to competing demands or constraints. To
  establish the concept of support, sustainment planners must know—
  (cid:122) Subordinate units’ missions.
  (cid:122) Times missions are to occur.
  (cid:122) Desired end states.
  (cid:122) Schemesof movement and maneuver.
  (cid:122) Timing of critical events.
  (cid:122) BCT sustainment requirements.
  (cid:122) Unit capabilities.
  Synchronization of Battle Rhythm and Sustainment Operations
  9-57. Commanders and subordinate leaders fully integrate sustainment operations with the BCT battle
  rhythm through integrated planning and oversight of ongoing operations. Sustainment and operational
  planning, and the targeting process occur simultaneously rather than sequentially. Incremental adjustments
  to either the maneuver or the sustainment planduring its execution must be visible to all BCT elements. The
  sustainment synchronization matrix and LOGSTAT report initiate and maintain synchronization between
  operations and sustainment functions. (See ATP 4-90 for additional information.)
  Fusion of Sustainment and Maneuver Situational Understanding
  9-58. Effective sustainment operations by the BSB depend on a high level of situational understanding.
  Situational understanding enables the BSB commander and staff to maintain visibility of current and