Nitrogenius
Contributor
I doubt they would know. Why would they bother to understand local regulations when they had the tanks on their boat and filled them with their own compressor?What I'm mildly curious about, not that it changes anything in the situation between me and him, is if the people that sold him the tanks had any idea that they were unusable in the US.
If they were to become famous those tanks might be worth a lot more someday