Wow, I have been in a hole for a few years I guess. Have been buying acetylene every year or so w/ no problems. Just refilled my home tank and bought a tank for my new hobby room micro torch and supplier has always come thru, no questions asked. And he had a couple hundred trade-in tanks on his dock last month. Big welding town, oil fields and ag, and I have heard no complaints from local welders.
Anyway, we all know welding is killing the planet so us hot rodders should be paying fines and be required to get Federal permits to own a torch anyway. Don't you realize this is USS of Amerika after all?