What is the US Navy's no-decompression limit if planning to dive to 60 fsw?

The US Navy's no-decompression limit for a dive to 60 feet of seawater (fsw) is 60 minutes. This means that within this specified depth, divers are allowed to stay for up to 60 minutes without the need for decompression stops during the ascent to the surface. As a result, the correct choice reflects the maximum time a diver can safely spend at that depth without incurring a risk of decompression sickness upon returning to the surface.

Choosing "no limit" would imply that a diver can remain at that depth indefinitely without any concerns regarding nitrogen absorption and the associated risks. However, all depths have specific time limits based on dive tables or computers that account for the physiological effects of diving, especially regarding nitrogen saturation in the body. Therefore, understanding decompression limits is crucial for safe diving practices.