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The General Aviation Noise Ordinance (GANO)* has been adopted by the County of Orange to regulate the hours of operation and the maximum permitted noise levels associated with general aviation operations. This information has been prepared to introduce you to the GANO and to encourage the operation of your aircraft in the quietest manner possible consistent with safety. The Airport recognizes that pilot sensitivity is a key component of a successful noise abatement program, and your continued cooperation is greatly appreciated.