newstodate.aero
APR 25, 2005 (newstodate): With effect from May 21, 2005, the FAA will implement a new warning signal for communicating with aircraft within the Washington D.C. metropolitan area Air Defense Identification Zone.
The signal may be directed at specific aircraft suspected of making unauthorized entry into the zone and on a heading or flight path that may be interpreted as a threat or that operate contrary to the operating rules for the metropolitan area Air Defense Identification.
If targetted by the signal that is harmless to the eyes, tha aircraft must immediately communicate with ATC.
Failure to do so may result in interception by military aircraft and/or the use of force, says FAA in a special notice.
The signal may be directed at specific aircraft suspected of making unauthorized entry into the zone and on a heading or flight path that may be interpreted as a threat or that operate contrary to the operating rules for the metropolitan area Air Defense Identification.
If targetted by the signal that is harmless to the eyes, tha aircraft must immediately communicate with ATC.
Failure to do so may result in interception by military aircraft and/or the use of force, says FAA in a special notice.