text: Sustainment
  headquarters, a medical treatment squad, an area support squad, a medical treatment squad (area), and patient
  holding squad.
  9-144. The evacuation platoon performs ground evacuation and en route patient care for supported units.
  The evacuation platoon headquarters provides command and control for the evacuation squad (forward) and
  the evacuation squad (area). The platoon employs ten evacuation teams. The evacuation platoon provides
  ground medical evacuation support for the maneuver battalions and squadron, BEB, and field artillery
  battalion of the BCT. In addition, it provides ground medical evacuation support to units receiving area
  medical support from the medical company.
  Note. The medical operations cell of the supporting combat aviation brigade (see chapter 4)
  provides assistance in planning and coordination for air ambulance employment and utilization.
  The medical operations cell assists with the synchronization of the air and ground medical
  evacuation plan. The medical operations officer and operations sergeant also manage medical
  treatment facility information from AHS support commands and surgeon cells from higher roles
  of care including combat support hospital locations and status (beds by type and number
  available), evacuation routes, casualty collection points, and ambulance exchange points. (See
  ATP 4-02.2, ATP 4-02.3, and FM 3-04 for additional information.)
  9-145. The medical company’s supply element is the brigade medical supply office. This office provides
  brigade level, Role 2, class VIII coordination, synchronization, and execution of medical logistics support
  for the BSMC and supported BCT. Class VIII organizational assets in the BCT, are fixed and deploy with
  assigned AHS support units. Operational medical logistics support relies on the application of a class VIII
  supply chain that is agile, responsive, and swift and that possesses situational understanding of the supported
  organizations, the operational environment, mission, and the area of operations. During the initial deployment
  phase, the BSMC receives medical resupply mainly through preconfigured push packages, medical resupply
  sets from the supporting medicallogistics company, or a higher logistics support activity (see ATP 4-02.1).
  SECTION III – ECHELON SUPPORT
  9-146. How BCT support organizations, including external and attached organizations, array in echelon
  varies widely based upon METT-TC. The BSB, in support of the BCT’s concept of support, plans and
  synchronizes echelon support—the method of supporting an organization arrayed within an area of
  operations (ATP 4-90). Current mission, task organization, command and control, concept of support, and
  terrain influence how support is echeloned.
  ECHELON OF SUPPORT
  9-147. Echeloning support within the BCT is a carefully planned and executed process. The method
  employed to echelon support is a deliberate, collaborative decision based upon a thorough mission analysis
  within the MDMP. During this analysis, there must be an understanding at all levels of the capabilities of
  each support organization within and supporting the BCT. Commanders must understand that echeloned
  support will vary by BCT and each battalion or squadron. As the BCT’s primary sustainment organization,
  the BSB’s organization facilitates echeloned support. Common echelon of support at the lowest level of
  sustainment is executed at the battalion, squadron, company, battery, and troop echelons. Figure 9-2 on
  page9-28provides a notional concept of support for a BCT conducting offensive combat operations.