The local metal scrapyards are far too lenient. They don’t bat an eye at someone bringing in stolen air conditioning condensers (they can even be brand new) You should have to have the tittle for the car to bring a converter in, since it’s a federal offense to remove them.
If my eyes could roll in a complete circle they would.
Nobody who is parting out cars (resulting in a decent number of legitimately owned cats lying around to scrap) is bringing in the title because cheap junk often changes hands without a title and if not you gave the title to the junkyard in order for them to take the bare shell without you cutting it up.
And how is the scrap yard supposed to figure out which cat matches which title?
(the other guy covered the mechanic use case so I won't)