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  2. Classified information in the United States - Wikipedia

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

    The U.S. no longer has a Restricted classification, but many other countries and NATO documents do. The U.S. treats Restricted information it receives from other governments as Confidential. The U.S. does use the term restricted data in a completely different way to refer to nuclear secrets, as described below.

  3. Classified information - Wikipedia

    en.wikipedia.org/wiki/Classified_information

    Restreint UE/EU Restricted: information and material the unauthorised disclosure of which could be disadvantageous to the interests of the European Union or of one or more of the Member States. Organisation for Joint Armament Cooperation , a European defence organisation, has three levels of classification: OCCAR Secret, OCCAR Confidential, and ...

  4. Prohibited airspace - Wikipedia

    en.wikipedia.org/wiki/Prohibited_airspace

    Some prohibited airspace may be supplemented via NOTAMs. For example, Prohibited Area 40 (P-40) and Restricted Area 4009 (R4009) often have additional restricted airspace added via a NOTAM when the president of the United States visits Camp David in Maryland, while normally the airspace outside of P-40 and R4009 is not prohibited/restricted.

  5. Government Security Classifications Policy - Wikipedia

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

    This is simpler than the old model and there is no direct relationship between the old and new classifications. "Unclassified" is deliberately omitted from the new model. Government bodies are not expected to automatically remark existing data, so there may be cases where organisations working under the new system still handle some data marked ...

  6. Restricted airspace - Wikipedia

    en.wikipedia.org/wiki/Restricted_airspace

    Section of the Sectional Aeronautical Chart for Washington 90th edition, showing the restricted area R-5002 around Warren Grove, New Jersey. Restricted airspace is an area of airspace typically used by the military in which the local controlling authorities have determined that air traffic must be restricted or prohibited for safety or security concerns.

  7. Restricted Data - Wikipedia

    en.wikipedia.org/wiki/Restricted_Data

    In this way, a document, for instance, could be classified as "Secret" (S), "Secret//Restricted Data" (S//RD), or "Secret//Restricted Data-Critical Nuclear Weapon Design Information" (S//RD-CNWDI) depending on the type of information a document contains. Formerly Restricted Data (FRD) is a category also designated in the Atomic Energy Act of ...

  8. Controlled-access highway - Wikipedia

    en.wikipedia.org/wiki/Controlled-access_highway

    Restricted access to motor vehicles, prohibited to pedestrians, animals, pedal cycles, mopeds, agricultural vehicles. The minimum speed is not lower than 50 km/h [31 mph] and the maximum speed is not higher than 130 km/h [81 mph] (except Germany where no speed limit is defined).

  9. Special use airspace - Wikipedia

    en.wikipedia.org/wiki/Special_use_airspace

    Map of special use airspace R2508 in the Mojave Desert, a Restricted Airspace. Special use airspace (SUA) is a type of special airspaces in the United States designated for operations of a nature such that limitations may be imposed on aircraft not participating in those operations. Often these operations are of a military nature.