4-47. In addition, commanders at every level should keep in mind the human aspects of the transition to civilian organizations and account for it in their assessments. When military units are near the end of a disaster response mission, they need to coordinate the transition with their civilian counterparts. State National Guard forces may supplant federal military forces as communities begin to recover; this is likely in incidents involving immediate response authority (see paragraph 4-28). Federal forces that arrived immediately at an incident site may be relieved by National Guard forces as the latter reach the scene. In other cases, federal forces may receive a mission assignment to replace state National Guard units so state forces can enforce public order while federal troops support humanitarian efforts. The transition between federal forces and state National Guard forces is planned and coordinated through the joint field office, between the federal coordinating officer, defense coordinating officer, and state coordinating officer.