Q clearance

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Q clearance or Q access authorization is the U.S. Department of Energy (DOE) security clearance required to access Top Secret Restricted Data, Formerly Restricted Data, and National Security Information, as well as Secret Restricted Data. Restricted Data (RD) is defined in the Atomic Energy Act of 1954 and covers nuclear weapons and related materials. The lower-level L clearance is sufficient for access to Secret Formerly Restricted Data (FRD) and National Security Information, as well as Confidential Restricted Data and Formerly Restricted Data. Access to Restricted Data is granted on a need-to-know basis to personnel with appropriate clearances. A Q Clearance is equivalent to a U.S. Department of Defense Top Secret clearance. According to the Department of Energy, "Q access authorization corresponds to the background investigation and administrative determination similar to what is completed by other agencies for a Top Secret National Security Information access clearance." In addition to classification levels, three categories of classified matter are identified: Restricted Data (RD), Formerly Restricted Data (FRD), and National Security Information (NSI), as well as a class of access-restricted materials: special nuclear material (SNM). The employee must have a security level clearance consistent with their assignment. Common combinations are reflected in the table on the right/above. Much of the DOE information at this level requires access to Critical Nuclear Weapon Design Information (CNWDI, pronounced "SIN-widee"). Such information bears the page marking Top Secret//RD-CNWDI and the paragraph marking (TS-N) or (TS//RD-CNWDI). The DOE security clearance process is overseen by the Department of Energy Office of Hearings and Appeals. DOE clearances apply for access specifically relating to atomic or nuclear related materials ("Restricted Data" under the Atomic Energy Act of 1954). The clearance is issued predominantly to non-military personnel. In 1946, U.S. Army Counter Intelligence Corps Major William L. Uanna, in his capacity as the...