Came into existence Mar. 1 2000; primarily tasked with security oversight in collects together various DOE and DOD offices with a combined staff of 2000
Excellent link for accessing millions of pages of on-line information
www.osti.gov/opennet/rdd-5.html "Drawing Back the Curtain of Secrecy: Restricted Data Declassification Decisions, 1946 to the Present (January 1, 1999)"
Version RDD-5 (1 Jan 1999), update on RDD-4. Lots of interesting bits of information about nuclear weapons.
www.osti.gov/opennet/rdd-6.pdf "Drawing Back the Curtain of Secrecy: Restricted Data Declassification Decisions, 1946 to the Present (January 1, 2000)"
Version RDD-6 (1 Jan 2000) Alas not much different form RDD-5
www.pantex.com/ Pantex Plant (where nuclear weapons are built; serviced; and disassembled)