formerly restricted data(redirected from Classified information in the United States)
Also found in: Wikipedia.
formerly restricted data
Information removed from the restricted data category upon a joint determination by the Department of Energy (or antecedent agencies) and Department of Defense that such information relates primarily to the military utilization of atomic weapons and that such information can be adequately safeguarded as classified defense information. (Section 142d, Atomic Energy Act of 1954, as amended.) See also restricted data.