Consists of seven knowledge development sections, four practical application sessions and four training dives. Designed for the diver transitioning from recreational diving to technical diving.

The PADI Tec 40 course is where you transition from recreational diving to technical diving. It's a natural progression from Tec Basics, or it can be your first tec diver course. It is the bridge between no stop diving and technical decompression diving. You will gain experience and begin building the knowledge and skills you need to continue your tec diver training. You will qualify to make limited decompression dives to 40 metres/130 feet and use up to 50 percent oxygen as a decompression gas.

To enroll in the Tec 40 course, you must meet these qualifications:

• PADI Advanced Open Water Diver, and PADI Rescue Diver recommended
• PADI Enriched Air Diver
• PADI Deep Diver or proof of 10 dives to 30 metres/100 feet or deeper
• 30 logged dives
• 18 years old