REGULATION · GLOSSARY

Part 91

The US Federal Aviation Regulation that governs non-commercial general aviation, including most private aircraft owners flying themselves and their guests.

IN PRACTICE

Part 91 prohibits payment in exchange for transportation. A Part 91 flight that accepts compensation is operating as illegal charter unless it falls under one of the narrow exemptions (e.g. cost-sharing under Section 61.113, time-sharing or interchange agreements).

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Frequently asked

What does Part 91 mean in private aviation?

The US Federal Aviation Regulation that governs non-commercial general aviation, including most private aircraft owners flying themselves and their guests.

Which authority enforces part 91?

In the United States, the FAA (under 14 CFR) is the lead authority. In Europe, EASA sets the framework, implemented by national CAAs. Operators flying internationally must comply with the regulation of every state they operate to.

Does part 91 affect the price or availability of a charter?

Indirectly, yes. Regulatory requirements drive operator costs, callout times and route options, which flow through to charter pricing and aircraft availability.

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RELATED TERMS

  • Part 135The US Federal Aviation Regulation that governs on-demand commercial charter operations —
  • Illegal CharterAny compensated passenger flight conducted outside a valid Part 135 / AOC certificate — in
  • Broker DisclosureWritten disclosure US charter brokers are required to provide before a flight, identifying
  • Part 295The US Department of Transportation regulation that governs charter brokers, including req
  • Air Operator Certificate (AOC)The European equivalent of a US Part 135 certificate, issued by EASA member-state authorit
  • EASAThe European Union Aviation Safety Agency — the regulator responsible for civil aviation s
  • FAAThe US Federal Aviation Administration — the agency responsible for regulating all aspects
  • ICAOThe International Civil Aviation Organization — the UN agency that sets global standards a
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