What is the required taxi spacing when in trail?

The required taxi spacing when in trail is 150 feet. This distance is established to ensure adequate separation between aircraft during ground operations, particularly while taxiing in formation or when multiple aircraft are moving in close proximity. Maintaining this spacing helps reduce the risk of collisions and allows for proper maneuverability, especially in scenarios where aircraft need to react to unexpected changes in speed or direction. This standard is vital for maintaining safety and efficiency on the ground in busy aviation environments.