National Security Decision Directive 306: National Coordination of Emergency Relocation Sites [open pdf - 305KB]
Alternate Title: NSDD 306: National Coordination of Emergency Relocation Sites
National Security Decision Directive 306 "provides a formal mechanism for coordination the selection of ERS [Emergency Relocation Sites] to prevent conflicts that would lessen the effectiveness of U.S. Continuity of Government plans..."
National Security Decision Directive 306; NSDD 306
Digital National Security Archive: http://nsarchive.chadwyck.com/