To
From
Open Water Diver
Core
Professional Association of Diving Instructors
Entry Level Tender Diver
Association of Diving Contractors International
Mixed Gas Diving Supervisor
Specialty
Bell/Saturation Diving Supervisor
Diver Medic Technician
National Board of Diving and Hyperbaric Medical Technology
Air Diver
Bell/Saturation Diving
Life Support Technician
Mixed Gas Diver
Air Diving Supervisor