text: Army Sustainment Operations
  1-74. While normal Service channels may be an effective means of supporting a joint operation, the Services
  will often be precluded from deploying the capabilities necessary to provide 100 percent dedicated Service
  support. More often than not, the operational situation will require CUL support to provide effective and
  efficient support of one or more major services or supplies. In fact, CUL support occurs in almost all joint
  operations, especially in the form of standing inter-Service support relationships. For example, the Army
  provides inland petroleum distribution to the joint force.
  1-75. When properly executed, CUL can produce significant efficiencies by eliminating duplication among
  Service components, DOD agencies, multinational partners, and contractors in theater. By utilizing common-
  item and common-service support, the CCDR may be able to produce significant savings in equipment,
  personnel, and supplies deployed to a particular joint operations area (JOA). These savings may further
  reduce the requirement for strategic lift, the logistics footprint within a JOA, and possibly the overall cost of
  an operation. Figure 1-4 displays the CCDR's authorities and sample processes used to execute those
  authorities.
  Figure 1-4. Combatant commander’s authorities
  JOINT COMMAND FOR LOGISTICS
  1-76. The CCDR, through exercising DAFL, may assign joint logistics responsibilities to a Service
  component to establish a joint command for logistics (JP 4-0). The assignment as a joint command for
  logistics is clearly designated by orders and establishes the organization as a joint command. This command
  authority is not to be confused with EA, CUL, or any other type of Army support to other Services. Generally,
  the CCDR will designate the Service with the preponderance of forces or the most capable logistics structure
  to fill the joint command for logistics requirement. The designated joint command for logistics requires staff
  augmentation from other Services to meet joint force requirements. See JP 1 Vol 2, JP 3-33, and JP 4-0 for
  more information on establishing a joint command. In the event the Army Service component command
  (ASCC) is assigned responsibility for establishing a joint command for logistics, the TSC or expeditionary