How do Part 135 fuel requirements compare to Part 91?

The correct choice regarding Part 135 and Part 91 fuel requirements is that they are generally not the same, but rather, Part 135 fuel requirements are indeed more stringent than those for Part 91 operations.

In Part 135 operations, there are specific regulations mandating operators to adhere to strict fuel reserve requirements to ensure safety and reliability. For instance, Part 135 mandates that a plane must have enough fuel to reach its destination, divert to an alternate airport if necessary, and then have a specified amount of fuel remaining for any additional potential delays. This is particularly crucial in commercial operations where passenger safety and on-time performance are paramount.

On the other hand, Part 91 allows for more flexibility in fuel reserve requirements. While there are still provisions for safe operation, they are not as rigorously defined as those in Part 135, allowing pilots greater discretion based on their flight profiles and operational needs.

Therefore, the comparison reveals that Part 135 requirements are more stringent, emphasizing the need for a greater margin of safety and contingency planning, which is less rigorously dictated in Part 91 operations.