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To view this page ensure that Adobe Flash Player version 9.0.124 or greater is installed. Airspace Restrictions Around Washington, DC. While many low-altitude flight restrictions around sensitive locations for reasons of national security have long been in place, the number and scope of these restrictions has expanded significantly since the terrorist attacks of September 11, 2001. The most comprehensive of these restricted areas is the airspace around Washington, DC, which consists of a Flight Restricted Zone (FRZ), 15-nautical miles in radius, and a larger area – referred to as the Washington, DC Air Defense Identification Zone (ADIZ)90 – where flights must adhere to specific flight plans and air traffic communications and surveillance requirements. An FAA proposal91 to make the airspace restrictions around Washington, DC permanent has met with considerable disapproval from pilots and GA advocacy groups who had hoped these restrictions 88 See Title 49, Code of Federal Regulations, §1550.5. 89 See Title 49, Code of Federal Regulations, §1550.7. 90 The term Air Defense Identification Zone (ADIZ) has long been in place and refers to any area of airspace where the identification, location, and control of aircraft are required in the interest of national security. Prior to September 11, 2001, this term generally referred to buffer zones around coastal waters and international borders of the United States. Since September 11, 2001, the ADIZ concept has been expanded to include zones within the United States such as in the vicinity of Washington, DC. 91 Federal Aviation Administration. “Washington, DC Metropolitan Area Special Flight Rules Area; Proposed Rule.” Federal Register, 70(149), 45250-45261 (August 4, 2005). would be eased. Presently, the airspace restrictions continue to exist as temporary flight restrictions (TFRs) while the decision to make them permanent remains under review. A detailed discussion of the airspace restrictions in the Washington, DC area can be found in CRS Report RS22234, Homeland Security: Protecting Airspace in the National Capital Region, by Bart Elias. 中国通航网 www.ga.cn 通航翻译 www.aviation.cn 本文链接地址：Securing General Aviation 通用航空安保(49) |
