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