What is typically required before entering a runway?

Answer: C — complete stop and checking for aircraft

Before entering a runway, it is crucial for a vehicle to come to a complete stop and check for any aircraft. This step ensures the safety of both the vehicle operator and any aircraft that may be in the vicinity. Runways are areas of high activity, and aircraft generally have the right of way; therefore, confirming that the runway is clear is essential to avoid collisions. Coming to a complete stop allows for both visual confirmation and a moment to listen for any incoming aircraft that may not be visible. This practice is part of standard runway safety protocols and must be adhered to by all ground vehicles operating in close proximity to runways. By stopping and checking, the driver can ensure that they do not inadvertently place themselves in harm's way or disrupt aviation operations.