text: Army Aviation Organizations and Command and Control
  ORGANIZATION
  2-21. The TAB-GS includes an HHC, six SSBs, and a non-standard GSAB. The TAB-A includes an HHC,
  four GSABs, and one ASB. Figure 2-4 and figure 2-5 provide the organizational structure for the TAB-GS
  and TAB-A.
  Figure 2–4. Theater aviation brigade (general support)
  Figure 2–5. Theater aviation brigade (assault)
  2-22. Although the TAB-GS headquarters with the GSAB and the ASB has the capability of deploying in
  support of global operations, the TAB-GS is a Northern Command asset and typically operates in
  decentralized elements from the team to battalion level conducting DSCA.
  CAPABILITIES
  2-23. The TAB-GS conducts the following tasks:
  * Permissive zone, route, and area reconnaissance.
  * Air movement.
  * AE.
  * Aerial CASEVAC.
  * Search and rescue.
  * Aerial C2.
  2-24. The TAB-A is a deployable operational-level organization that typically reinforces other aviation
  commands with subordinate battalions and companies or provides theater support autonomously. The TAB-
  A may also be task-organized with other aviation units to accomplish other traditional CAB or ECAB
  missions and core competencies but requires C2, staff, and maintenance augmentation.
  2-25. The TAB-A conducts the following tasks:
  * Air assault.
  * Air movement.
  * AE.
  * Aerial CASEVAC.
  * Aerial C2.
  * PR.