To improve situational awareness and gather more specific data about helicopter movements and helicopter noise, the FAA is requesting that pilots of civil helicopters operating under VFR at or below 6,000 feet in the Los Angeles Basin squawk transponder code 1205 between September 1 and Feb. 27, 2015. Law enforcement and other first-responder helicopters have been asked to squawk 1206. However, both rotary- and fixed-wing pilots should continue to squawk 1201 when flying in the L.A. Special Flight Rules Corridor.