I was wondering if there is a regulation if you fly both part 135 and part 91 in the same day which regulations do you follow?

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    $\begingroup$ Regulations in regard to what? Crew hours? Rest periods? $\endgroup$ – Ron Beyer Jul 19 '18 at 3:39
  • $\begingroup$ Welcome to aviation.SE! I'm not sure what you're asking here. As Ron said, are you asking if part 91 flights count towards part 135 flying time limits? Or are you asking something completely different? If you can be more specific then we may be able to answer. $\endgroup$ – Pondlife Jul 19 '18 at 13:42

Part 91 contains the General Operating and Flight Rules. These rules apply to almost every civil flight within the USA.

Part 135 contains the Operating Requirements for Commuter and on-demand operations and the rules governing persons on board such aircraft.

So when you fly the "Part 91 flight", you follow the regulations of Part 91.

When you fly the "Part 135 flight", you follow the regulations of both Part 91 and Part 135. If Part 135 is more strict in some regard, the more stricter rule of 135 applies.


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