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Chapter II II-12 JP 3-28 efficiency of this process is best ensured by either situating a senior NG representative or even the DSC in the JFC alongside the senior defense official or by ensuring that those individuals are provided timely visibility of all state NG assets that can be assigned the mission. b. Domestic Incident Management. HSPD-5, Management of Domestic Incidents, states, to prevent, protect against, mitigate, respond to, and recover from terrorist attacks, major disasters, and other emergencies, the USG shall establish a single, comprehensive approach to domestic incident management. The objective of the USG is to ensure all levels of government across the nation have the capability to work efficiently and effectively together, using a national approach to domestic incident management. In these efforts, with regard to domestic incidents, the USG treats crisis management and chemical, biological, radiological, and nuclear (CBRN) response as a single, integrated function, rather than as two separate functions. DOD categorizes such support domestically as DSCA. Within DOD, there is also the use of the term “crisis management” and the use of other terminology that may be specific to the actual type of operation, such as CBRN consequence management. c. Non-DOD participants, including local civil authorities and first responders, are frequently not familiar with US military terms, definitions, and doctrine. When working with non-DOD participants/partners, especially in an emergency situation, clear, effective, and mutually understandable communication is essential. DOD elements will be able to work much more seamlessly, efficiently, and productively by employing operational concepts and terms that other departments, agencies, and authorities already understand. The main sources of these concepts and language include the NRF and NIMS. (1) The NRF defines incident management as how events are managed across all HS activities, including prevent, protect against, mitigate, respond to, and recover from terrorist attacks, major disasters, and other emergencies. This is consistent with the DOD view that incident management is a national comprehensive approach to prevent, prepare for, respond to, and recover from terrorist attacks, major disasters, and other emergencies. The NRF further defines emergency management as a subset of incident management, the coordination and integration of all activities necessary to build, sustain, and improve the capability to prepare for, protect against, respond to, recover from, or mitigate against threatened or actual natural disasters, acts of terrorism, or other man-made disasters. (2) Historically, much of DOD’s DSCA mission set has involved operations responding to the consequences of natural or man-made incidents. Responses to hurricanes may include a joint task force (JTF) for DOD DSCA operations in support of another agency. 8. Department of Defense and Emergencies in the Homeland a. DSCA is initiated by a request for DOD assistance from civil authorities or is authorized by the President or SecDef.