National Security Decision Directive 301: Establishment and Operation of the U.S. Nuclear Risk Reduction Center [open pdf - 209KB]
Alternate Title: NSDD 301: Establishment and Operation of the U.S. Nuclear Risk Reduction Center
"National Security Decision Directive 301 directs policy for the establishment and maintenance of a National Nuclear Risk Reduction Center (U.S. NRRC): The U.S. objective is to use the NRRC Agreement to enhance U.S. efforts to reduce further the risk of conflict with the Soviet Union that could result from accident, miscalculation, or misunderstanding."
National Security Decision Directive 301; NSDD 301
Digital National Security Archive: http://nsarchive.chadwyck.com/