Is it true that a diver must always perform a safety stop at 15 feet?

Performing a safety stop at 15 feet is considered best practice for divers, particularly after deep or extended dives. It allows divers to off-gas nitrogen, reducing the risk of decompression sickness, which can occur if a diver ascends too quickly after spending time at depth. The safety stop acts as a buffer, giving the body extra time to eliminate nitrogen that has been absorbed during the dive.

Though it is a highly recommended practice, there are situations where a diver may choose not to do a safety stop, such as when diving at shallow depths or if in an emergency. However, the principle of safety stops is widely accepted in recreational diving as a way to promote diver safety and health. Therefore, always executing a safety stop at 15 feet after most recreational dives is indeed true and aligns with the recommended procedures for safe diving practices.