The process or result of determining that information no longer requires classification for national security reasons. See also CLASSIFICATION (3), CLASSIFIED INFORMATION.
(déclassification) - the decision, recorded in writing, of the originator of classified information or another officer authorized by the deputy head or head of a department or agency, to remove the classified status of information
The determination that classified information no longer requires, in the interest of national security, any degree of protection against unauthorized disclosure, together with removal or cancellation of the classification designation.