National Occupational Standards for Kilts

[Phil]

And, in what way will Scottish, or even UK legislation affect you, in Missouri?

Exactly - there is no threat to anyone in this unless you come over from Missouri to Scotland and try selling Missouri-made kilts here as genuine Scottish kilts. Or try selling them as Scottish kilts in Missouri. I'm sure nobody will be interested otherwise so you are quite safe wearing whatever kilt you like. Nobody will try to confiscate it I am sure.