Only designated officials within the Department of Energy may declassify records containing Restricted Data. Any record determined to contain Restricted Data (RD) may not be reviewed for declassification of national security information until the Secretary of Energy has determined that the RD marking may be removed. Declassification review of national security information in records containing Formerly Restricted Data (FRD) may only be performed after the Secretary of Energy, in conjunction with the Secretary of Defense, has determined that the FRD marking may be removed.