What are the rules on labor laws?

I have a friend who is working a ridiculous job. It's security, but he gets no time off. Aren't there labor laws? He has not had two consecutive days off in months, He rarely gets breaks when he is actually at work, He gets less than 8 hours in between He gets off and his next workday. They won't give him vacation days, He sometimes only has one day off in a week and IF it's two, they are non-consecutive days. He does not have a set schedule. The schedule is set at the beginning of the week and his boss changes it randomly and at the last minute. So for instance, if he has worked all week and finally has a scheduled day off, his boss would often call the day off and tell him to come in. He is also bounced from different locations.

What can he do?

Can he report this? To whom can he report it to?