So far I only have SSI certs.
OW - 2005
Deep Diver - 2005
Night/Limited Vis - 2005
Navigation - 2005
Stress & Rescue (and DAN 02) - March 2009
Master Diver - March 2009
Nitrox - June 2009
Dive Control Specialist - December 2009
I'm planning on also getting Adv. Nitrox, Deco, and Tech (Extended Range) certifications sometime in the future but don't have any set dates yet
OW - 2005
Deep Diver - 2005
Night/Limited Vis - 2005
Navigation - 2005
Stress & Rescue (and DAN 02) - March 2009
Master Diver - March 2009
Nitrox - June 2009
Dive Control Specialist - December 2009
I'm planning on also getting Adv. Nitrox, Deco, and Tech (Extended Range) certifications sometime in the future but don't have any set dates yet