"DD-441 (Attachment)"
"DoD 5220.22-M."
Issued by: U.S. Munitions Board. Office of Industrial Security, Dec. 13, 1951 ; the Munition Board's Office of Manpower and Industrial Security, <Jan. 18, 1951- > ; U.S. Defense Supply Agency <1976> ; U.S. Defense Logistics Agency <1977- > ; Dept. of Defense <1980- >.