When I started Diving, ALL of my certifications are SEI Diving. Open Water Adv L2 & L3, DRAM, Ice Diver, Dry Suit, Nitrox, Search & Recovery - Public Safety Diver Level 1 Awareness, Equipment Service, and DiveMaster. Having moved to South Carolina, everything is PADI, so I am having to switch things over in order to work and affiliate with the LDS. I could not find out anything really based on my SEI Certifications, they could however tell me based on my CMAS Certifications, which I hold 3; 2 and 3 Star Diver and 1 Star Instructor. It would be nice to see what the Equivalences between PADI and SEI are, however, I believe SEI exceeds PADI standards