Which Part governs charter airlines safety standards?

• A. Part 135
• B. Part 121
• C. Part 91
• D. Part 103

Answer: (A)

Safety standards for charter airlines are governed by Part 135. This part covers on-demand and air-taxi operations and sets the specific requirements for those charter flights, including flight operations, maintenance programs, pilot qualifications and currency, cabin safety, and recordkeeping. It is tailored to unscheduled, on-demand service, which distinguishes it from Part 121 that governs scheduled airlines operating larger aircraft under a different certification framework. Part 91 covers general aviation operations and is less prescriptive for commercial charter activity, while Part 103 applies to ultralight vehicles. So, Part 135 is the regulation that directly addresses the safety standards for charter flight operations.