National Security Decision Directive 70: Nuclear Capable Missile Technology Transfer Policy [open pdf - 401KB]
Alternate Title: NSDD 70: Nuclear Capable Missile Technology Transfer Policy
National Security Decision Directive (NSDD) 70 "provides policy guidance with respect to the transfer of nuclear capable missile delivery systems' hardware and technology. It should be considered in conjunction with applicable space launch vehicle directives with respect to the transfer of dual use space hardware and technology, as well as with NSDD 5 and other directives governing the export of conventional missiles and techonolgy."
National Security Decision Directive 70; NSDD 70
Federation of American Scientists: http://www.fas.org/