The interpretation that a scrap dealer is automatically considered to buy or sell automobiles is simply wrong. Magic City correctly pointed out the reason why automobile, vessel, and aircraft dealerships are ineligible. They deal in high dollar, fungible items that can be purchased for cash and, later, sold for cash in a different country; i.e. they can be used to launder money.
"Scrap" does not have those characteristics.
As Hovis says, it's a matter of judgement laced with personal courage.
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In this world you must be oh so smart or oh so pleasant. Well, for years I was smart. I recommend pleasant.