防空識別圏
Leesburg Executive is located on the outer boundary of the Special Flight Rules Area, formerly known as the Air Defense Identification Zone (ADIZ) instituted around Washington, D.C. prior to the commencement of the Iraq War in February 2003. The ADIZ presents very little differences for IFR flights, but special procedures are still required for all VFR aircraft arriving at and departing from the airport. Due to a special triangular cut-out in the ADIZ circle, they are less onerous than procedures for other ADIZ airports.