Indy
Hyper Poster
It's determined by the manufacturers with further guidance/requirements by the industry standards that are adopted by the government of a specific country, region or state.Oh I shouldn't have come across as brushing this off as no big deal, just interesting to think about the prevalence of it all things considered.
I wonder if/who would drive NDT requirements - the park, the chain, the state/country/authorities, the manufacturer. Not something I've ever really heard much about after all these years doing this.