PADI Tec 40

PADI Tec 40

Tec 40 – The Tec 40 Diver course introduces divers to limited decompression diving within accepted recreational depth limits. Through the course you’ll learn about technical dive planning, equipment and procedures. The Tec 40 Diver course allows the interested diver to begin technical training while still building comfort with their gear as well as gaining needed experience before moving on to Tec 45 Diver courses and beyond. The Tec 40 Diver course is also an excellent choice for divers wanting to add limited decompression diving to their experience base without wanting to make the jump to doubles and full technical gear. Tec 40 qualifies divers to make limited, single gas decompression dives of no more than 10 minutes deco to 40m/130ft. Divers use air and up to 50% EANx


  • Be certified as a PADI Advanced Open Water Diver (or other qualifying certification)
  • Be certified as a PADI Enriched Air Diver (or other qualifying certification)
  • Be certified as a PADI Deep Diver (or other qualifying certification) OR Have a minimum of 10 logged dives deeper than 100 feet
  • Be 18 years of age
  • Have a minimum of 30 logged dives of which at least 10 must be enriched air dives deeper than 60 feet.
  • Current diver accident insurance

$600.00 Plus materials and gear

Required Equipment  for Tec 40-45-50

  • Double cylinders of at least 70 cf each (may be backmounted doubles with isolation manifold or sidemount)
  • Two complete regulators, one with a seven foot hose for air sharing and one with an SPG. Where two, unmanifolded cylinders are used (sidemount), each regulator must have an SPG, carried or marked in such a way as to avoid confusion between them and one regulator must have a seven foot hose
  • Two stage / deco cylinders with attachment hardware and a single second stage regulator and SPG
  • Tec diving BCD and harness (backmount or sidemount)
  • Two appropriate dive computers or one appropriate computer with a backup timer and depth gauge w/ dive tables
  • Exposure suit appropriate for the environment and dive duration
  • Argon system (If appropriate for the environment and exposure protection)
  • Weight system (if needed)
  • Jon line (if needed for the environment)
  • Inflatable signal tube, whistle and / or other visual and audible surface signaling devices.
  • Reel and lift bag or appropriate DSMB
  • Knife / cutting device and backup
  • Slate
  • Back up mask (recommended)
  • Compass
  • Lights as appropriate for the environment
  • Backup buoyancy control  – may be double bladder BCD or drysuit (when using lightweight single cylinders)

Recommended Equipment

  • Laptop computer with deco software
  • Oxygen analyzer
  • First aid kit
  • Emergency oxygen
  • Emergency Assistance Plan

Recommended Courses (Almost required)

  • PADI Emergency Oxygen/DAN Oxygen Provider
  • DAN Advanced Oxygen Provider
  • DAN AED for Divers
  • DAN On-Site Neuro Assessment