Special flight rules area
In United States aviation, a special flight rules area (SFRA) is a region in which the normal regulations of flight do not apply in whole or in part, especially regulations concerning airspace classification, altitude, course, and speed restrictions, and the like. Washington, DC Special Flight Rules Area Following the terrorist attacks of September 11, 2001, the airspace around Washington DC underwent a number of changes designed to restrict flying around the city. In 2003, a temporary flight rules area was created and was named the Washington DC Air Defense Identification Zone. In 2008 the temporary status of the ADIZ was removed and the rule was made permanent. In order to fly within the DC SFRA, pilots of general aviation aircraft are required to file a special flight rules flight plan, obtain a discrete transponder code, and remain in contact with air traffic control at all times. Special training is required in order to fly within 60 nm of the Washington DC (KDCA) VOR. Los Angeles Special Flight Rules Area Long established in the Los Angeles basin is the Los Angeles SFRA. Los Angeles International Airport is surrounded by extensive Class B airspace, which is difficult for VFR traffic to navigate.