How to become a commercial diver in Canada

1. Get a recreational open water certification. CDI and DiveSafe require it (both offer a prerequisite week) (CDI, DiveSafe). Atlantic CDC and ETSM ask for 20 logged dives or 20 hours (ACDC, ETSM).
2. Pass a commercial diving medical with a hyperbaric physician, as every school listed requires.
3. Choose a DCBC-accredited program. Unrestricted surface supplied (50 m) is the widest ticket; occupational SCUBA (30 m) is shorter and cheaper. See the comparison.
4. Graduate and get DCBC certification. DCBC lists accredited schools here.
5. Find work. Expect contract work and travel. See jobs and wages.