JP 3-28, page 81

Supporting and Sustaining Activities V-7 5. Logistics During times of crisis, DOD may provide vital logistics support to civil authorities. a. Authorities and Responsibilities (1) The authorities and responsibilities for logistics operations in support of DSCA are largely the same as logistics operations for any other DOD mission set. Some notable exceptions, as indicated in paragraph 5.b. “Logistics Support,” apply to DSCA operations within the land, airspace, and territorial waters of the US. (2) The JP 4-0 series of publications for logistics support applies in DSCA. However, logistics planners consider both military and civil requirements and capabilities concurrently to avoid duplication and inappropriate uses. The Defense Logistics Agency (DLA) and the Services share responsibilities as suppliers to the joint force since both manage supplies in support of readiness requirements. In this shared role, they support the components of the joint force with equipment and supplies needed for sustained logistics readiness. (3) When multiple logistics capabilities from many participating agencies, multinational partners, international organizations, NGOs, and private-sector entities are involved in DSCA operations, each is ultimately responsible for providing logistics support for their own forces. However, the GCC should strive to integrate efforts through the use of acquisition and cross-servicing agreements and associated implementing arrangements and any other vehicle necessary to provide logistics support. Optimizing the capabilities should result in greater flexibility, more options, and more effective logistics support. b. Logistics Support. The primary focus of the combat service support effort is to sustain and assist DOD forces employed in DSCA operations. Responsibilities for support within logistics as described in existing joint doctrine apply to DSCA missions, except as noted below: (1) Supply. When operating within the US and its territories, forces accomplishing DSCA missions will receive sustainment support from their respective owning Service. The ability for the Services to use home station stocks and existing contracts makes this the most effective method for sustaining the force. Care must be taken to coordinate any expansion of existing contracts or development of new supply contracts in the operational area so they do not adversely impact other federal, state, local, territorial, or tribal contracting efforts. All classes of supply will need to be considered. However, some classes, such as Class I (Subsistence), Class II (General Support Items), Class III (Petroleum, Oils, Lubricants), Class IV (Construction and Barrier Material), Class VI (Personal Demand Items), and Class VIII (Medical Material/Repair) will require close consideration. To facilitate support for US populations impacted by disasters, DLA may provide commodity support directly to FEMA upon receipt of a funded RFA or through existing interagency agreement. (2) Transportation. With SecDef approval, DOD may provide transportation support.