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REGULATION — OFFICIAL DEFINITION

Instrument

14 CFR § 1.1 — Definitions

Official definition — 14 CFR Part 1

REGULATION — OFFICIAL DEFINITION

Instrument means a device using an internal mechanism to show visually or aurally the attitude, altitude, or operation of an aircraft or aircraft part. It includes electronic devices for automatically controlling an aircraft in flight.

Reproduced verbatim from the eCFR. Regulatory definitions control how the term is used throughout 14 CFR.

Is this a regulation?

Yes — this is regulatory text and is legally binding.

Definition published in 14 CFR Part 1. Regulatory definitions are legally binding wherever the defined term is used in 14 CFR.

SkeyeMentor FAA Library is an educational reference and study aid. Regulatory and FAA materials can change. SkeyeMentor provides links and contextual explanations to help pilots study, but users should verify current requirements through official FAA, eCFR and other applicable government sources before relying on them operationally. SkeyeMentor explanations are educational and are not legal advice.