Sec. 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) of this subpart, unless that airplane has been shown to comply with Stage 3 noise levels.

[Doc. No. 26433, 56 FR 48658, Sept. 25, 1991]