The entry point into the technical range provides a transition from recreational to tech. The diver is qualified to complete up to 10 minutes of non-accelerated decompression while breathing from one deco cylinder of up to EANx50,

• Depth is limited to 40m
• Prerequisites: 18 years or older, Advanced Open Water, Enriched Air Nitrox, and Deep Diver (or equivalents), minimum 30 logged dives of which 10 dives were made with nitrox deeper than 60 feet