Hi I haven't been diving in while and I am now in a position to start again. I will be moving to Thailand in a few months and If i can't get time to dive there then shame on me. My number one question is : I have a NASDS certification is that still an acceptable cert. They seemed to be the big dawg on the block when I was certified in 1975 I don't seem to be able to find them on any search programs. Any one have thought or two.