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Currently,the airlines and their pilots, in close collaboration with FAA, are perfecting an even more efficient noise-abatement procedure for jets, referred to as “noise-abatement takeoff profile”. The operation is essentially a three-stage procedure which substantially reduces noise exposure in terms of flyover time. It holds the promise of even more significant re-dictions in noise-exposure under takeoff paths. Hopefully, the new three-stage profile will ultimately be adopted uniformly throughout the United States for all jet transport takeoffs.
    The efforts of the industry have been directed along many fronts. With-in less than a year after the introduction of jets, the aviation community formed a non-profit organization to coordinate nationwide planning and procedures for the reduction of carrier aircraft noise. Known as the National Aircraft Noise Abatement Council, or “NANAC”, it is composed of the Aerospace Industries Associations (consisting of the principal airframe and engine manufacturers), the Air Line Pilots Association (comprising 15,000 licensed commercial airlines pilots), and the Air Transport Association of America (made up of the 36 scheduled certified - route carriers of the United States). Subsequently the organization was expanded by the participation of the Airport Operators Council(now the Airport Operators Council International, made up of 107 member organizations, representing more than 600 public airports in the 50 states of the United States, and 10 foreign states), and the American Association of Airport Executives(the managers and directors of more than 400 airports throughout the United States)