Department of Defense Instruction 3025.22: The Use of the National Guard for Defense Support of Civil Authorities, July 26, 2013 [Incorporating Change 1, May 15, 2017] [open pdf - 90KB]
Alternate Title: DoDI 3025.22: The Use of the National Guard for Defense Support of Civil Authorities, July 26, 2013 [Incorporating Change 1, May 15, 2017]
"It is DoD policy that: [...] [d.] The use of the National Guard to support a federal department or agency or qualifying entity request for assistance will only be conducted in a duty status pursuant to Reference (f) or section 502(f) of Reference (a), unless otherwise authorized by the Secretary of Defense. (1) The National Guard will be considered for DSCA [Defense Support of Civil Activities] in accordance with the Global Force Management (GFM) process. (2) The recommendation to approve funding for the National Guard in a duty status pursuant to section 502(f) of Reference (a) will be made to the Secretary of Defense after: (a) The National Guard has been selected as the recommended sourcing solution to perform a DSCA mission."
Department of Defense Instruction 3025.22; DoDI 3025.22
Defense Technical Information Center (DTIC): http://www.dtic.mil/