If you're a learned professional (matching all of the three criteria on the page - one of which is salaried), artist/creative, teacher, law/medicine practioner, or are highly compensated (making > $100,000/year) overtime doesn't apply to you.
The definition of Overtime is actually getting paid, yes? The law I am referring to over in the E.U is actually working, full stop - paid or not. I am at a position where I am not paid any overtime - I'm still not allowed to be present at work for more than 70 hours a week.
Does nothing like this exist in the U.S? As in, you could technically work 168 hours with no legal ramifications?
At least, that's what I got out of the page.