Definition
Title 14 of the Code of Federal Regulations is the section of U.S. federal law that contains the rules governing aeronautics and space. For pilots, it includes the regulations issued by the FAA covering certification, airworthiness, flight operations, airspace, and pilot privileges and limitations. References such as 14 CFR Part 91 (general operating and flight rules) or 14 CFR Part 61 (certification of pilots) point to specific sections within this title.
Plain English
It's the official rulebook for flying in the United States. When a document says '14 CFR Part 91,' it's pointing to a specific chapter inside that rulebook.
Context Anchor
Seen in FAA handbooks when a system, inspection, repair, operating rule, or equipment requirement is tied to an official aviation regulation.
Derivation
The Code of Federal Regulations is the organized collection of all permanent rules issued by U.S. federal agencies. It's divided into 50 numbered titles by subject area. Title 14 happens to be the one covering aviation and space, which is why pilots see '14 CFR' so often. The number itself isn't significant — it's just the slot aviation was assigned.
Why Pilots Care
Pilots must know and follow these rules to remain legal and to keep operations safe.
Intuition Check
Do not read 14 CFR as advice or general guidance. In this context, it means the enforceable federal aviation regulations; FAA handbooks explain them, but 14 CFR is the rule source.
Example Sentence 1
The pilot reviewed 14 CFR Part 91 before the flight to confirm the required preflight actions.
Example Sentence 2
A pilot reviews 14 CFR before an inspection to confirm the aircraft meets all required standards.