Which dive tables does NAUI use as the basis for its standard EAN32 and EAN36 dive tables?

NAUI utilizes the US Navy dive tables as the foundation for its standard EAN32 and EAN36 dive tables. These tables are established based on extensive research and practical experience, providing a reliable framework for divers using enriched air nitrox mixtures such as EAN32 and EAN36. The US Navy tables are designed to account for various depths and times, ensuring that divers can plan safe and effective dives while minimizing the risk of decompression sickness.

The depth and time limits outlined in these tables are critical for ensuring that divers maintain safe nitrogen exposure levels while using nitrox. This is particularly important because nitrox has a higher oxygen content than standard air, which varies the dive profiles and decompression requirements. The reliance on these established tables provides a systematic way to manage the unique aspects of diving with enriched air.

The other options might represent other military or government operations' dive practices, but they do not specifically form the base for the NAUI training in enriched air diving. The US Navy’s research and recommendations have shaped safe diving practices widely used in recreational and military diving communities.