14 CFR Part 91 — General Operating and Flight Rules

Section 01: Organizations & Authorities

Definition

The FAA regulation establishing the general operating and flight rules for all civil aircraft operations in the United States. Part 91 prescribes rules governing the operation of aircraft, including pilot-in-command responsibilities, equipment requirements, flight rules (VFR/IFR), maintenance requirements for non-commercial operations, and minimum equipment list provisions. Part 91 applies to all operations unless more specific operating rules (Parts 121, 135) apply.

Primary Sources

14 CFR Part 91 — General Operating and Flight RulesFAA

FAA general operating rules applicable to all civil aircraft.

Related Terms

Federal Aviation Administration (FAA)Title 14 Code of Federal Regulations (14 CFR)14 CFR Part 121 — Operating Requirements: Domestic, Flag, and Supplemental Operations14 CFR Part 135 — Operating Requirements: Commuter and On Demand Operations

Need help navigating certification?

Understanding the terminology is the first step. If you need expert guidance on DO-178C, DO-254, ARP4754B, or any aspect of FAA, EASA, or TCCA certification, our team is here to help.