What is the primary distinction between these different parts of the regulations? Part 91 applies to general aviation and non-commercial operations(civil aircraft). Part 135 applies to commercial on-demand operations(such as private jets). Part 121 applies to large-scale scheduled commercial air carriers.

As with Part 135, you can receive compensation for flights and (unless the FAA lets you out of this requirement) you need a commercial operating certificate, But unlike Part 135, Part 125 doesn't allow you to hold yourself out to the public as willing to provide air transportation for hire (so-called common carriage).

As mentioned above, the key difference between part 91 and part 135 operations is that Part 91 flights are considered non-commercial, while Part 135 flights are commercial. This has a number of implications for the operator, passengers and insurance providers.

The Part 135 operators are the best safety-wise. The pilots are required to have a minimum of 500 total flight hours, 100 cross-country flight hours and 25 night, and cross-country flight hours.

Part 91 applies to general aviation and non-commercial operations(civil aircraft). Part 135 applies to commercial on-demand operations(such as private jets). Part 121 applies to large-scale scheduled commercial air carriers.

A 135 Basic operator is a certificate holder whose operation is also limited in the size and scope of their operations. They have the following limitations: Part 135 Basic operators are required to develop and maintain manuals, training programs, and have the required management positions.

What Are Part 135 Operations? Part 135 operations are a set of FAR guidelines relevant to non-scheduled, commercial aircraft operations. These can include air taxi flights and private air charters, among other types of transactional private jet situations.

Many Part 135 operators offer critical passenger and cargo service to remote areas, providing a lifeline to populations that would not otherwise exist. Most Part 135 air carriers are required to have a FAA approved hazardous materials (dangerous goods) program.

Part 135 is a certificate required by the Federal Aviation Administration for a company to operate as a non-scheduled air charter carrier. It encompasses a section of the Federal Aviation Regulations (FARs) that establishes safe operating procedures and policies for on-demand jet charters.