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  2. Classified information in the United States - Wikipedia

    en.wikipedia.org/wiki/Classified_information_in...

    The Clinton administration made a major change in the classification system by issuing an executive order that for the first time required all classified documents to be declassified after 25 years unless they were reviewed by the agency that created the information and determined to require continuing classification. [26]

  3. Classified information - Wikipedia

    en.wikipedia.org/wiki/Classified_information

    There are three levels of document classification under Brazilian Law No. 12.527, the Access to Information Act: [23] ultrassecreto (top secret), secreto (secret) and reservado (restricted). A top secret (ultrassecreto) government-issued document may be classified for a period of 25 years, which may be extended up to another 25 years. [24]

  4. List of U.S. security clearance terms - Wikipedia

    en.wikipedia.org/wiki/List_of_U.S._security...

    Within the U.S. government, security clearance levels serve as a mechanism to ascertain which individuals are authorized to access sensitive or classified information. These levels often appear in employment postings for Defense related jobs and other jobs involving substantial amounts of responsibility, such as air traffic control or nuclear ...

  5. United States security clearance - Wikipedia

    en.wikipedia.org/wiki/United_States_security...

    A United States security clearance is an official determination that an individual may access information classified by the United States Government.Security clearances are hierarchical; each level grants the holder access to information in that level and the levels below it.

  6. Government Security Classifications Policy - Wikipedia

    en.wikipedia.org/wiki/Government_Security...

    There is no requirement to mark every document as "OFFICIAL" – it is understood that this is the default for government documents. [ 5 ] Organisations may add "descriptors" to highlight particular types of official data, for instance commercially sensitive information about contracts, or diplomatic data which should not be seen by locally ...

  7. Superintendent of Documents Classification - Wikipedia

    en.wikipedia.org/wiki/Superintendent_of...

    Superintendent of Documents Classification took form around 1891, when Adelaide Hasse was given the task of organizing the government publications held at the Los Angeles Public Library. Rather than organize publications by subject, she instead organized them by provenance, that is, the government agency that issued them. [2]

  8. Classified information in the United Kingdom - Wikipedia

    en.wikipedia.org/wiki/Classified_information_in...

    The Cabinet Office issued the Government Security Classifications Policy (GSCP) in 2013; it came into effect in 2014. It replaced the old Government Protective Marking Scheme (GPMS). Classifications must be capitalised and centrally noted at top and bottom of each document page, save at OFFICIAL where the document marking is optional.

  9. Executive Order 13526 - Wikipedia

    en.wikipedia.org/wiki/Executive_Order_13526

    As a component of the Obama Administration's initiative to improve transparency and open-access to the Federal Government and the information it produces formally introduced upon taking office in late January 2009 [2] and as a result of an agency-wide review and recommendation process ordered in May of that same year, [3] the issuance of EO 13526 was ultimately prompted by several factors.