Regulation Text
For airplanes covered by this subpart and operated under part 125 of this chapter, the following regulations apply as specified:
(a) For each airplane operation to which requirements prescribed under this subpart applied before November 29, 1980, those requirements of this subpart continue to apply.
(b) For each subsonic airplane operation to which requirements prescribed under this subpart did not apply before November 29, 1980, because the airplane was not operated in the United States under this part or part 121, 129, or 135 of this chapter, the requirements prescribed under § 91.805 of this subpart apply.
(c) For each supersonic airplane operation to which requirements prescribed under this subpart did not apply before November 29, 1980, because the airplane was not operated in the United States under this part or part 121, 129, or 135 of this chapter, the requirements of §§ 91.819 and 91.821 of this subpart apply.
(d) For each airplane required to operate under part 125 for which a deviation under that part is approved to operate, in whole or in part, under this part or part 121, 129, or 135 of this chapter, notwithstanding the approval, the requirements prescribed under paragraphs (a), (b), and (c) of this section continue to apply.
[Docket 18334, 54 FR 34321, Aug. 18, 1989, as amended by Amdt. 91-276, 67 FR 46571, July 15, 2002]
Research Notes
Section 91.803 — Part 125 operators — addresses noise compliance for operators of Part 125 (large airplane non-common carriage) aircraft.
What's required: Part 125 operators (typically operating large airplanes — 20+ passenger seats or 6,000+ lb payload — for non-common-carriage purposes) must comply with the applicable noise certification stage for their aircraft.
Practical scope: Most Part 125 operators run charter-like operations with aircraft like converted 727s, MD-80s, and similar. These aircraft predominantly meet Stage 3 noise standards.
Amendment History
Amendment History Coming Soon
Every time this regulation changes, we'll record it here — the date, what was amended, and a plain-English summary of what shifted.