bassplayer88 - 1/11/2016 10:32 AM
Neither SDI or PADI have an actual dive requirement for Nitrox Cert. I did my SDI Nitrox Cert as a Rec diver, no dives required, and as a PADI EAN Specialty Instructor you do x2 simulated dives with the computer, the actual dives are optional, not a requirement.

Hope that helps