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Tec 45

Tec 45 Course TecRec Logo 

The Tec 45 course picks up where Tec 40 leaves off and  takes your training as a tec diver further and deeper. It is the second subcourse in the full PADI Tec Diver course 

What You Learn

  • The skills and equipment and planning need to dive to a maximum of 45 metres/145 feet 
  • The knowledge to plan and execute single and repetitive decompression dives using a single stage cylinder of EANx or oxygen to accelerate or add conservatism to the decompression stops. 
  • There would be no time limit to amount of decompression 
  • Prepare for and respond to foreseeable technical diving emergencies  
  • Master the basic skills and procedures you’ll need as you move into deeper technical diving 

The Scuba Gear You UseTechnical scuba divers hovering through the deep waters

You use basic tec diving equipment  

The Learning Materials You Need

You'll use the Tec Deep Diver Crew-Pak, which introduces you to 

  • tec diving lingo 
  • emergency procedures 
  • decompression and stage cylinder handling 
  • gas planning 

The pak includes a manual, dive planning checklist and dive planning slate. The optional Equipment Set-up and Key Skills video on DVD is a great tool to help you practice at home in between your tec diving adventures. You'll continue to use the Tec Deep Diver Crew-Pak through the Tec 50 course. 


You must be 

  • A PADI Advanced Open Water Diver (or hold a qualifying certification from another organization) 
  • A PADI Rescue Diver (or hold a qualifying certification from another organization) 
  • A PADI Enriched Air Diver (or hold a qualifying certification from another organization) 
  • PADI Deep Diver (or hold aqualifying certification from another organization) 
  • PADI Tec 40 (or hold a qualifying certification from another organization) 
  • Have a minimum of 50 logged dives, of which at least:
       - 12 dives were made with enriched air nitrox deeper than 18 metres/60 feet
       - 6 (with or without EANx) dives were deeper than 30 metres/100 feet
  • At least 18 years old 
  • Have a medical statement signed by a physician 


  • Tec Flowchart 06Mar2012Discover TecTec 40Tec 45Tec 50Tec Trimix 65Tec Gas BlenderTec SidemountTec Trimix DiverDiscover RebreatherTec CCR QualifierTec CCR RefresherRebreather DiverAdvanced Rebreather DiverRebreather QualifierRebreather RefresherOpen Water Scuba InstructorTec Gas Blender InstructorMaster Scuba Diver TrainerTec InstructorTec Deep InstructorTec Sidemount InstructorTec Trimix InstructorTec 40 CCRTec 60 CCRTec 100 CCRImage Map