22 August 2010

http://badge.lanl.gov/uk-usa_classification.shtml

UK - USA Classification Equivalency Table UK Classification = USA Classification UK In-Confidence OUO or Private U U Non-Atomic Classifications: UK Restricted Confidential NSI UK Confidential Confidential NSI UK Secret/Top Secret Secret/Top Secret NSI Atomic Classifications: UK Confidential Atomic Confidential RD/FRD UK Secret Atomic Secret RD/FRD UK Top Secret Atomic Top Secret RD/FRD UK Secret Conifer Secret RD/FRD UK Secret Atomic Artificer Secret RD/FRD UK Secret Atomic Conifer Artificer Secret RD/FRD UK Secret Atomic Principal Secret RD/FRD Sigma 1 & 2 or CNWDI UK Secret Atomic Principal Artificer Secret RD/FRD Sigma 1 & 2 or CNWDI UK Top Secret Atomic Top Secret RD/FRD UK Top Secret Atomic Artificer Top Secret RD/FRD UK Top Secret Atomic Conifer Artificer Top Secret RD/FRD UK Top Secret Atomic Principal Top Secret RD/FRD Sigma 1 & 2 or CNWDI UK Top Secret Atomic Principal Artificer Top Secret RD/FRD Sigma 1 & 2 CNWDI   CA CRD SA (Atomic) SRD SA-TSA Secret Top Secret RD CTSA (Cosmic Top Secret Atomal) DOE Q (SRD) or DoD TS/CNWDI UTAH DEFINITION is UK Confidential UCSG Use Control Subgroup THEOREM Info & Hardware is Secret Atomic Code Word definition is UK Confidential Definitions UK Top Secret - Information and material the unauthorized disclosure of which would cause EXCEPTIONALLY GRAVE DAMAGE to the nation (UK). UK Secret - Information and material the unauthorized disclosure of which would cause SERIOUS DAMAGE to the interests of the nation (UK). UK Confidential - Information and material the unauthorized disclosure of which would be PREJUDICIAL to the interests of the nation (UK). UK Restricted - Information and material the unauthorized disclosure of which would be UNDESIRABLE in the interests of the nation (UK) Supplementary Categories of Classified Information Atomic Atomic information is information classified Confidential or above, which reveals either directly or indirectly information about: The design and fabrication of nuclear warhead. Certain features of the design and fabrication of inertial confinement fusion, including laser fusion systems. The costs and production rate of stockpile or nuclear warheads. Certain features concerning the production, handling and stockpile of fissile, fusionable and special materials used in nuclear weapons. Certain features of the design of naval nuclear propulsion plants. The production rate of naval nuclear propulsion plants. Certain other topics and categories of nuclear information as defined in the joint US/UK Nuclear Weapons Classification Guide and in other guides issued by the Ministry of Defense and the Tripartite Declassification Guide and Classification Working Party guides issued by the UK Atomic Energy Authority. Atomic Conifer Atomic Conifer is UK Secret or UK Top Secret information concerning details (quantities) of fissile, fusionable or special materials and certain general information on design of warheads. Atomic Principal Atomic Principal is UK Secret or UK Top Secret information the theory of operation and the internal design of a nuclear warhead and its unique components.(Equivalent to US Weapon Data Information.) Atomic Artificer Atomic Artificer is UK Secret or UK Top Secret information concerning hardness of Polaris/Trident systems.