FAR/AIM
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Federal Aviation Regulations
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PART 91—GENERAL OPERATING AND FLIGHT RULES
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Subpart I—Operating Noise Limits
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§ 91.853 – Final compliance: Civil subsonic airplanes.
§ 91.853 – Final compliance: Civil subsonic airplanes.
Except as provided in § 91.873, after December 31, 1999, no person shall operate to or from any airport in the contiguous United States any airplane subject to § 91.801(c), unless that airplane has been shown to comply with Stage 3, Stage 4, or Stage 5 noise levels.