plan and conduct Open Circuit, No-Deco Scuba Dives On Air for water depths up to 130 feet

Deep Dive Operations (DDO)
Duration:  2 days (16 hours)
Recommended for:  Certified Public Safety Divers who operate in environments with water depths greater than 60 feet and up to 130 feet


  • Member of a public safety agency
  • At least 18 years of age
  • Students diving in dry suits must submit proof of dry suit training with registration
  • Complete RSTC Medical Statement (including physician signature, if applicable)
Dive Rescue I Training Program from Dive Rescue International

With one additional day of training, qualified members of your department could be certified as DDO Trainers

Training Calendar & Map
Course Registration Form


After completing this program, the Public Safety Diver (PSD) will have established the baseline set of knowledge, skills and abilities to plan and conduct Open Circuit, No-Deco Scuba Dives on air for water depths up to 130 feet.


  • Review the physics and physiology of diving
  • Effects of deep dives on air supply
  • Planning deep repetitive dives
  • No-deco dives
  • Safe ascent procedures
  • Safe descent procedures
  • Appropriate operational platforms
  • Cause and effects of N2 Narcosis
  • Safety stops vs. Deco stops

Note To Applicants
This program is designed for personnel who are physically fit. Participants are encouraged to participate after successfully completing the IADRS Watermanship Test or testing to a fitness level of 13 MET (Metabolic Equivalents) or greater. Participants with aerobic fitness questions or concerns should consult their physician prior to in-water training. Participants who have poor aerobic fitness may attend this program as surface support personnel with the approval of the instructor.