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  2. 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.

  3. Restricted military area - Wikipedia

    en.wikipedia.org/wiki/Restricted_military_area

    Military area sign in four languages (Polish, English, German and Russian) in Westerplatte. A restricted military area or military out-of-bounds area is an area under military jurisdiction where special security measures are used to prevent unauthorized entry. [1]

  4. Restricted area - Wikipedia

    en.wikipedia.org/wiki/Restricted_Area

    Restricted area may refer to: An area that only authorized people can enter; see also exclusion zone; Restricted area, a zone within the key of a basketball ...

  5. Piggybacking (security) - Wikipedia

    en.wikipedia.org/wiki/Piggybacking_(security)

    No Tailgating sign at Apple Inc. office. In security, piggybacking, similar to tailgating, refers to when a person tags along with another person who is authorized to gain entry into a restricted area, or pass a certain checkpoint. [1] It can be either electronic or physical. [2]

  6. Security identification display area - Wikipedia

    en.wikipedia.org/wiki/Security_identification...

    Security Identification Display Area, or SIDA, is a special security area designated by an airport operator in the US to comply with Transportation Security Administration (TSA) requirements in CFR 49 1542.205. An identification system must be used in this area.

  7. Washington, D.C., Special Flight Rules Area - Wikipedia

    en.wikipedia.org/wiki/Washington,_D.C.,_Special...

    Within the ADIZ is an even more sensitive zone designated the Washington, D.C. Metropolitan Area Flight Restricted Zone (DC FRZ). The DC FRZ extends approximately 13–15 nmi (15–17 mi; 24–28 km) around the DCA VOR/DME. Flight within the FRZ is restricted to governmental, certain scheduled commercial and a limited set of waivered flights.

  8. Military operations area - Wikipedia

    en.wikipedia.org/wiki/Military_operations_area

    Areas near actual combat or other military emergencies are generally designated as restricted airspace. See Temporary Flight Restriction (TFR). A MOA is a type of special use airspace (SUA), other than restricted airspace or prohibited airspace , where military operations are of a nature that justify limitations on aircraft not participating in ...

  9. Three seconds rule - Wikipedia

    en.wikipedia.org/wiki/Three_seconds_rule

    The three second area is depicted here as a darker shaded zone at either end of the court.. The three seconds rule (also referred to as the three-second rule or three in the key, often termed as lane violation) requires that in basketball, a player shall not remain in their opponent’s foul lane for more than three consecutive seconds while that player's team is in control of a live ball in ...