Editing Classification (section)

=== Classes of Information ===

* '''Unclassified Controlled Nuclear Information (UCNI)''' is a dissemination category for identifying, controlling and limiting the dissemination of unclassified information on the physical protection of special nuclear material, vital equipment and facilities.
* '''Formerly Restricted Data (FRD)''' is information removed from the Restricted Data category upon a joint determination by the Department of Energy (or antecedent agencies) and the Department of Defense that such information relates primarily to the military utilization of atomic weapons and that such information can be safeguarded adequately as classified National Security Information in the United States. For purposes of foreign dissemination, however, such information is treated in the same manner as Restricted Data.
* '''Restricted Data''' is all data concerning design, manufacture or utilization of atomic weapons; the production of special nuclear material, or the use of special nuclear material in the production of energy, but does not include data declassified or removed from the Restricted Data category under Section 142 of Public Law 83-703.
* The DOE classification system also encompasses other categories of military information, as well as the dissemination of nuclear-related information to other agencies.
* '''National Security Information (NSI)''' is information which requires protection against unauthorized disclosure in the interest of the national security of the United States and which has been determined to be classified in accordance with the provisions of Executive Order 12356 or any predecessor or successor order.
* '''Critical Nuclear Weapon Design Information (CNWDI)''' is that '''Top Secret Restricted Data''', or '''Secret Restricted Data''', revealing the theory of operation or design of the components of a thermonuclear or implosion-type fission bomb, warhead, demolition munition or test device. Specifically excluded is information concerning arming, fuzing, and firing systems; limited life components; and total contained quantities of fissionable, fusionable, and high explosive materials by type. Among these excluded items are the components which DoD personnel set, maintain, operate, test, or a replace. Critical Nuclear Weapon Design Information (CNWDI) is an access limiter used primarily within the DOD to control need-to-know access for nuclear weapon design information.