Some airspace designs are badly done. Some have “badness” thrust upon them. The Washington Air Defense Identification Zone (ADIZ), cobbled together by Notam in early 2003 as a “temporary” measure in preparation for the invasion of Iraq, managed to incorporate both extremes. Along with a “zero-tolerance” approach to even the most cursory and innocent violation, the Washington ADIZ became an 288
The New ADIZ
Some airspace designs are badly done. Some have "badness" thrust upon them. The Washington Air Defense Identification Zone (ADIZ), cobbled together by Notam in early 2003 as a "temporary" measure in preparation for the invasion of Iraq, managed to incorporate both extremes. Along with a "zero-tolerance" approach to even the most cursory and innocent violation, the Washington ADIZ became an operational burden, cartographic nightmare and growth industry for enforcement, all at the same time.
Key Takeaways:
- The Washington ADIZ underwent a significant overhaul effective August 30, 2007, aiming to reduce its operational burden and improve design after being deemed a "cartographic nightmare."
- Key changes include a reduction in the ADIZ's size, now encompassing a 30 nm radius from the Washington VOR/DME (DCA), which released several airports and 1800 square miles of airspace from its requirements.
- New VFR speed limits were introduced: 180 KIAS within the 30 nm ADIZ and 230 KIAS in an "Outer Speed Restriction" area (30-60 nm from DCA).
- Despite the reduced size, core operational procedures for VFR aircraft, such as filing ADIZ flight plans, obtaining discrete squawk codes, and maintaining two-way radio communication with ATC, largely remain in effect.
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