https://guides.loc.gov/finding-government-documents/declassified-documents
Jun 30, 2025 — Provides full-text access to over 500,000 pages of previously classified government documents. Covering major post-World War II era ...
https://www.archives.gov/declassification/ndc
On April 11, 2024, the National Declassification Center (NDC) released a listing of 38 declassification projects that consists of 4,077,991 pages that completed ...
https://www.cia.gov/readingroom/collection/cia-declassifies-oldest-documents-us-government-collection
The Central Intelligence Agency today declassified the United States Government's six oldest classified documents, dating from 1917 and 1918.
https://en.wikipedia.org/wiki/Classified_information_in_the_United_States
The United States has three levels of classification: Confidential, Secret, and Top Secret. Each level of classification indicates an increasing degree of ...
https://www.nsa.gov/Helpful-Links/NSA-FOIA/Declassification-Transparency-Initiatives/
NSA reviews records and makes them publicly available under the Freedom of Information Act (FOIA) or Mandatory Declassification Review provisions of Executive ...
https://vault.fbi.gov/
The Vault is our FOIA Library, containing 6,700 documents and other media that have been scanned from paper into digital copies so you can read them in the ...
https://libguides.chapman.edu/govdocs/declassifieddocs
Government records classified upon creation are scheduled for automatic declassification after 25 years, though departments can file for extensions.
https://nsarchive.gwu.edu/
The Digital National Security Archive (DNSA) is an invaluable online collection of more than 100,000 declassified records documenting historic U.S. policy ...
https://libguides.northwestern.edu/c.php?g=428800&p=2925763
Nov 19, 2025 — Here you can view documents released through the FOIA and other CIA release programs including CREST which requires the automatic ...
https://guides.ll.georgetown.edu/c.php?g=365986&p=5376077
Dec 10, 2024 — U.S. Declassified Documents Online. Full text searchable access to a selection of over 75,000 previously classified U.S. government documents.
https://www.libraries.rutgers.edu/databases/ddrs
US Declassified Documents Online is a collection of previously classified United States federal government documents.
https://www.cia.gov/readingroom/historical-collections
The Central Intelligence Agency today declassified the United States Government's six oldest classified documents, dating from 1917 and 1918. These ...
https://about.proquest.com/en/blog/2025/access-to-declassified-us-government-files-inspires-academic-research/
Jun 25, 2025 — The National Security Archive partners with ProQuest to make their archive of declassified documents accessible online via libraries.
https://www.justice.gov/archives/open/declassification
Dec 7, 2023 — The Mandatory Declassification Review Program permits individuals or agencies to require an agency to review specific classified national ...
https://dornsife.usc.edu/news/stories/what-are-classified-documents/
Aug 12, 2022 — The U.S. government uses three levels of classification to designate how sensitive certain information is: confidential, secret and top secret.
https://sgp.fas.org/othergov/index.html
Classified Document Cover Sheets (US). Cover Sheet for TOP SECRET documents, Standard Form 703; Cover Sheet for SECRET documents, Standard Form 704; Cover ...
https://research.lib.buffalo.edu/fedgov/declassified
Aug 27, 2025 — The US Federal Governments' process of classifying, safeguarding and declassifying documents is outlined in Executive Order 13526.
https://www.congress.gov/crs-product/IF12183
This product provides an overview of common legislative and executive branch procedures for declassifying intelligence.
https://www.brennancenter.org/our-work/research-reports/government-classification-and-mar-lago-documents
Oct 6, 2022 — There are three levels of classification, depending on the severity of the anticipated harm to national security: Confidential, Secret, and Top Secret.