N.H.
Hi M., try the Better Business Bureau. My job was allowed to "mandatory overtime" and it just became an Illinois law that they can't anymore. I'm an RN, so I don't know how laws work for all companies, but if HR is not getting you the answers, try the better business. Also, get a hold of your job description from HR, or if you have a copy from when you were hired, see what it says about overtime in it. If it's not in writing, they shouldn't be able to make you do it. Ask HR and your manager to show you their job decription for your position on their end too. Good luck!