<P> "Support provided by U.S. Federal military forces, National Guard, DoD civilians, DoD contract personnel, and DoD component assets, in response to requests or assistance from civil authorities for special events, domestic emergencies, designated law enforcement support, and other domestic activities . Support provided by National Guard forces performing duty in accordance with Reference (m) is considered DSCA, but is conducted as a State - directed action also known as civil support ." </P> <P> There are numerous other directives, policies and laws that shape the militaries role in conducting operations in support of other federal agencies . Some of them are the Insurrection Act, Homeland Security Act, Stafford Act, Economy Act and the Homeland Security Presidential Directive--5 . Each of these affect the way the military responds to a request for assistance from an interagency partner . </P> <P> When federal forces deploy support of DSCA, once those forces enter the incident area they come under the operational control of U.S. Northern Command (USNORTHCOM). US Northern Command only controls federal forces deployed into the impact area in response to the incident . National Guard forces deployed under the authority of the Governor remain under control of the Governor . </P> <P> Providing support to civil authorities cannot impair the ability of the military to conduct its primary mission . It is also critical to understand that the military is always in a supporting role and never the lead . According to the 2011 DSCA Interagency Partner Guide, a request to the DSCA is made when a disaster, crisis or special incident occurs and local, tribal or state authorities can no longer manage the situation . All incidents are controlled at the lowest civilian levels with the military filling in critical roles . Only federal agencies can request Department of Defense assistance and this request usually comes on behalf of a state need . All federal agencies can request military assistance by using a simple memo format that contains specific information on what capability is needed and also gives cost reimbursement guidance . Military assets conducting support stay under the control of the military chain of command . Assistance is coordinated with the local responders in the disaster area to ensure the military support is being properly utilized as per the approved request . If there is a need to change the original mission of forces conducting the assistance, the request process starts all over again . Determining when the military is done conducting the requested support is done collaboratively between DOD officials, local government and federal agencies . </P>

Which of the following pieces of legislation is most important to dsca