Final Answer:
Departures must adhere to the procedures prescribed for the assigned runway, unless otherwise directed by Air Traffic Control (ATC).
Step-by-step explanation:
When departing from an airport, pilots are generally required to follow specific procedures associated with the assigned runway, ensuring organized and safe air traffic flow.
These procedures include factors such as the direction of takeoff, altitude restrictions, and noise abatement considerations. It is crucial for pilots to adhere to these guidelines to prevent conflicts with other departing or arriving aircraft and maintain overall aviation safety.
However, ATC holds the authority to issue specific instructions that may deviate from the standard procedures, depending on air traffic conditions or other factors. Pilots must promptly comply with any instructions given by ATC to ensure the smooth coordination of air traffic movements.