CREST: 25-Year Program Archive
The automatic declassification provisions of Executive Order 13526 (formerly EO 12958, as amended) require the declassification of nonexempt historically valuable records 25 years or older. The EO was originally issued in April 1995 and via amendment established 31 December 2006 as the first major deadline for automatic declassification under the "25-year program." By that date, agencies were to have completed the review of all hardcopy documents determined to contain exclusively their equities. For CIA, the 2006 deadline covered the span of relevant documents originally dating from the establishment of the CIA after WWII through 1981.
The requirement to automatically declassify records 25 years or older "rolls" forward one year at a time. For example, by 31 December 2012, permanent records through 31 December 1987 were automatically declassified, unless appropriately exempted under the guidelines of the EO. In this regard, CIA maintains a program operating out of the CIA Declassification Center to review records under the purview of EO 13526 before they reach their automatic declassification deadline.