Differences Between FAA Part 91, 121, and 135 in Aviation
Pilot Institute
FEBRUARY 26, 2025
The parts refer to the parts of the Federal Aviation Regulations (FAR). The FARs are found under Title 14 (Aeronautics and Space) and Title 49 (Transportation) within the Code of Federal Regulations (CFR), which is US Federal Law. To summarize: The Code of Federal Regulations (CFR) is US Federal Law.
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