text: Chapter 6
  component command benefits from the early or phased deployment of the full TEC headquarters. An
  engineer brigade may provide adequate engineer OPCON if given a narrower span of control.
  The TEC develops plans, procedures, and programs for engineer support for theater army (including
  RSOI) requirement determination, operational mobility and countermobility, general engineering, power
  generation, area damage control, military construction, geospatial engineering, engineering design,
  construction material, and real property maintenance activities. The TEC commander receives policy
  guidance from the land component headquarters or theater army, based on the guidance from the GCC. The
  TEC headquarters element provides C2 for operational echelon engineer operations in the AO and reinforces
  engineer support to subordinate echelon forces. The TEC may support joint and multinational commands and
  other elements according to lead Service responsibilities as directed by the supported joint force command.
  This headquarters maintains a collaborative planning relationship with the theater army to help establish
  engineer policies for the theater. It also maintains coordination links with other Services and multinational
  command engineering staffs.
  The engineer brigade is one of several functional brigades available to support theater-level operations.
  It may be—
  * Task-organized under theater level functional commands.
  * Organized under the C2 of the TEC.
  * Directly subordinate to the theater army.
  The engineer brigade provides a similar but reduced organic capability to the theater army. The
  engineer brigade provides expertise to the TEC, but with a reduced capability. A significant determinate in
  tailoring the engineer brigade is the anticipated breadth of OPCON and support functions. The TEC is capable
  of supporting a broad array of requirements, as is typical when the theater army functions in an operational
  configuration while continuing its ASCC responsibilities. The brigade provides a more concentrated
  capability that may be adequate for a smaller-scale configuration with some functional assistance from a
  subordinate headquarters of ARFOR.
  The TEC can deploy scalable staff specialty capabilities to support the needs of the operational
  commander. These elements are capable of providing a wide range of technical engineering expertise and
  support and of coordinating support from USACE, other Service technical laboratories and research centers,
  and other potential sources of expertise in the civilian community. The elements are enabled by the global
  reachback capabilities associated with FFE. TEC resources are synchronized with USACE for peacetime
  engagements and to provide FFE and contract construction capabilities to the operational force (including
  engineering technical assistance, project planning and design, contract construction, real estate acquisition,
  infrastructure support, and support to nation-building capacities).
  ENGINEER BRIGADE AND MANEUVER ENHANCEMENT BRIGADE
  The division and corps support areas require a force headquarters to oversee a geographical area or to
  cover a specific function. Engineer brigades have been used to fill this gap in C2 coverage, or a C2 node can
  be used when more than two units are operating. Although a MEB and an engineer brigade are scalable
  forces, there are associated tasks that are best executed at the division level. These tasks include movement
  control, protection, detainee operations, air coordination, tactical combat force augmentation/employment,
  and the C2 of up to five enabler battalion size elements.
  The execution of complex engineer missions (such as gap crossings, deliberate defenses, and city wide
  reconstruction) requires engineer brigade headquarters to augment divisions and to functionally aligned corps
  engineer brigades operating in the corps or theater support areas. Commanders must balance modularity and
  flexibility with dedicated and assigned/attached engineer headquarters (including technical and tactical
  expertise) during training and during combat operations to fully support maneuver forces.
  Complex operations (such as division-level wet-gap crossing operations) far exceed the span of control,
  capability, and capacity of the BEB and the division engineer staff section. To sustain operational tempo
  between interdependent warfighting formations in a wet-gap crossing, a division requires a brigade-level C2
  headquarters with the capacity and technical capability to C2 multiple EAB engineer assets conducting
  M/CM/S and general engineering across the divisional crossing area. An engineer brigade is the most