OK TRhere is no proof shown yet. I am DOT HAZMAT cert’d. Again DOT only requires Hydro’s/5years for alum. But it is the law for Scuba tanks to be VIP’d every year by a PSI cert’d tec. Its under another organization with medical supplies. OK I’ll let you know where the proof is that a VIP is required with the government for scuba tanks yearly in about a week. Keep looking and keep learning. Remind me in a week or so if you don’t have the proof yet.
I think I will start another survey on the issue of scuba tanks to stir the pot so we can all learn about the facts.
Greg You are correct about its not worth the cost to do VIP on you own tanks. Besides the light to look inside the tank. The scope to look at the threads with the eye is roughly $750.