Alternate Title: NSDD 164: National Security Launch Strategy
National Security Decision Directive 164 provides a launch strategy to implement two provisions contained in NSDD 144: 1) The Space Transportation System (STS) will continue as the primary space launch system for both national security and civil government missions. 2)DOD will pursue an improved assured launch capability that will be complementary to the STS.
National Security Decision Directive 164; NSDD 164
Digital National Security Archive: http://nsarchive.chadwyck.com/