text: Army Aviation Operations
  AO. To establish evacuation procedures, each level of command issues an evacuation plan through the
  orders process. Figure 3-26 describes the evacuation orders process. On receipt of the higher headquarters
  Army health service plan, the AE support plan must be synchronized with Army Aviation planners. The
  evacuation order assigns—
  * The area support mission responsibilities for patient movement, blood, and medical resupply.
  For example, an air ambulance company in an ECAB supporting a division in the support area
  may be assigned more patient movements between MTFs due to fewer expected casualties away
  from the close area.
  * Joint and multinational force support responsibilities. For example, an air ambulance company
  could be tasked to provide AE to a Marine expeditionary force.
  * Any DS or area support requirements that take an air ambulance asset away from their higher
  headquarters. For example, a forward support MEDEVAC platoon could be tasked to support a
  humanitarian mission in a specific region outside the boundaries of the higher command.
  Figure 3–26. Medical evacuation orders process and medical planner locations
  3-152. The evacuation plan for a given AO requires adjustment and change during different phases of an
  operation. For example, transition from LSCO to consolidation of gains may dictate a significant change in
  evacuation coverage priorities. AE operations often require plans which support continuous and often
  decentralized operations. Such planning considerations include—
  * Receipt and synchronization with the MEDEVAC plan from higher headquarters.
  * DS and area support as required.
  * Mission variables.
  * Air ambulance company support for up to five locations during split-based operations.
  * Battle rhythm and communications flow for a MEDEVAC mission request.
  * Medical operations cell coordination with all medical units for collecting medical information to
  develop and maintain situational awareness of the MTF and patient regulating requirements.
  Note. In a multinational or coalition operation, a patient evacuation coordination cell may be
  used in lieu of the medical operations cell.
  * Fighter management plan to support 24-hour continuous operations at each AE location.