By contract they aren't supposed to work us more than two hours on position without a break, but if they do all we can do is file a grienvance. There is also the bit in there that they can exceed that for operational necessity, and they they have to pay you for a missed meal break. Your work laws are MUCH better over there, but the job is still fun if left alone by the suits, which is becoming less and less likely these days...
regards
Scott