How close should a vessel approach a diver in congested waters?

In congested waters, a vessel should maintain a safe distance of 100 feet when approaching a diver. This distance is crucial for ensuring the safety of divers who may be submerged or ascending to the surface. The regulation is based on the need to minimize the risk of collisions and to provide adequate space for the diver to operate safely without the immediate threat of a vessel passing nearby. Maintaining this level of distance helps to prevent accidents and allows the diver to have a buffer zone from potential hazards associated with vessel traffic. Additionally, this standard distance fosters safe diving practices and promotes awareness among vessel operators regarding the presence of divers in the water.