No certificate holder may operate a single-engine airplane under this part.
[Docket 28154, 60 FR 65927, Dec. 20, 1995]
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14 CFR · PART 121
§ 121.159 Single-engine airplanes prohibited.
Official text · Current as of Oct 19, 2026 · from eCFR
Not legal advice. This is the official text as published in the eCFR, which is updated daily but is not the legal edition. For legal purposes, use the annual Code of Federal Regulations or ask an aviation attorney.