Differences Between FAA Part 91, 121, and 135 in Aviation
Pilot Institute
FEBRUARY 26, 2025
In this article, we’ll explain the three primary regulations that apply to aircraft operations: Part 91, Part 121, and Part 135. Key Takeaways Part 91 covers general aviation with minimal restrictions. Part 135 regulates charter and commuter flights with stricter rules. What Are the Parts? Let’s explain.
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