Final answer:
The maximum hours one can work in a day without authorization from the Air Operators Certificate is determined by labor laws and regulations. For commercial pilots, the Federal Aviation Administration (FAA) has introduced fatigue management regulations to ensure safety. These regulations limit the maximum hours a pilot can work without an overnight break.
Step-by-step explanation:
Labor laws and regulations set a maximum number of hours that an employee may work in a day without authorization from the Air Operators Certificate. To protect pilots and passengers, the Federal Aviation Administration (FAA) has implemented fatigue management regulations in a number of nations, including the United States for commercial pilots. These rules set a maximum number of hours that a pilot may work without taking a break for the night, usually between 9 and 14 hours, depending on the kind of operation.
For instance, if a scheduled passenger flight involves two pilots and is part of a continuous 24-hour operation, the pilot may work a maximum of nine hours during a duty period, according to FAA regulations. However, if the flight is not part of a continuous 24-hour operation, the maximum duty period is reduced to 14 hours.
It is important to note that these regulations can vary between countries and different types of operations, so it is crucial to consult the appropriate aviation authority or labor regulations for specific details and requirements.