Department of Defense Directive 2005.02: Maritime Domain Awareness (MDA) in the Department of Defense, March 31, 2015 [open pdf - 101KB]
"This directive: a. Reissues DoD Directive 2005.02E (Reference (a)) to establish policy and assign responsibilities for MDA [Maritime Domain Awareness], by which DoD: (1) Contributes to the effective understanding of the global maritime domain and its impact on the security, safety, economy, and environment of the United States. (2) Distributes maritime information, including intelligence, in support of DoD missions globally. (3) Integrates MDA with awareness in the land, air, cyber, and space domains to provide commanders, decision makers, and responders with near-real-time integrated domain awareness. b. Designates the Secretary of the Navy as the DoD Executive Agent (EA) for MDA, in accordance with DoD Directive 5101.1 (Reference (a)). c. Designates the Under Secretary of Defense for Policy (USD(P)) as the OSD Principal Staff Assistant to oversee the activities of the DoD EA for MDA in accordance with Reference (a)."
Department of Defense Directive 2005.02; DoDD 2005.02
Defense Technical Information Center: http://www.dtic.mil/