Hyperlink for cross over to SDI to open a separate document accessed via link on the page:
Scuba Diving International (SDI) cross over Guide
Please see our cross over guide below to see the equivalent SDI qualification for your existing dive qualification.

SDI	BSAC	PADI	SAA	CMAS
Trainee Diver	Novice Diver	Basic Scuba	Elementary Diver	–
Open Water Diver	Ocean Diver	Open Water Diver	Open Water Diver	1 Star *
Advanced Adventure Diver	Sports Diver*	Adv. Open Water Diver **	Club Diver*	2 Star *
	Dive Leader	Dive Master	Dive Leader	2 Star *
Master Diver	Advanced Diver	–	Dive Supervisor	3 Star *
Master Diver	1st Class Diver	–	Dive Master	4 Star *
*equates to CMAS 1* until 10 additional dives have been completed ** equates to CMAS 1*

More about SDI

Scuba Diving International (SDI) was launched in 1999 and developed from dive professionals in the technical diving field. It is the sister company of Technical Diving International (TDI), which specialises in the more advanced disciplines of dive training such as mixed gas and rebreather diving.

SDI’s philosophy is to take recreational scuba diving to new levels, enhancing older diving practices by incorporating new diving technology and emphasising safety. Divers can progress through SDI’s recreational levels, then transition smoothly into technical diving with TDI.