Department of Defense
DIRECTIVE
NUMBER 5100.55
February 27, 2006
USD(P)
SUBJECT: United States Security Authority for North Atlantic Treaty Organization Affairs
(USSAN)
References: (a) DoD Directive 5100.55, "United States Security Authority for North Atlantic
Treaty Organization Affairs," April 21, 1982 (hereby canceled)
(b) USSAN Instruction 1-69, “Implementation of NATO Security Procedures,”
April 21, 1982
1
(c) North Atlantic Treaty Organization (NATO) Document C-M(2002)49,
"Security Within the North Atlantic Treaty Organization (U)," June 17, 2002
1
(d) NATO Security Directives AC/35-D/2000 through D/2005, June 17, 2002
1
(e) NATO Document C-M(64)39, "Agreement between the Parties to the North
Atlantic Treaty for Co-operation regarding Atomic Information (U),"
May 5, 1964
1
(f) NATO Document C-M(68)41 (5
th
Revision), “Administrative Arrangements to
Implement the Agreement between the Parties to the North Atlantic Treaty for
Co-operation Regarding ATOMAL Information,” February 20, 1989
1
1.
REISSUANCE AND PURPOSE
This Directive:
1.1. Reissues Reference (a) to update policies and guidance on the United States Security
Authority for North Atlantic Treaty Organization (NATO) Affairs (USSAN).
1.2. Outlines the method for transmitting NATO security policies within the Department of
Defense and assigns responsibilities for maintaining NATO security worldwide.
1.3. Implements the United States (U.S.) provisions for the protection of NATO classified
information contained in Reference (b).
1.4. States the Secretary of Defense’s Terms of Reference (Enclosure 1) as the USSAN.
1
Reference may be obtained from the Central U.S. Registry.
