Most states in the US have a state labor department but the rules aren't the same in every state. Contact your state's labor department or comment below this answer the state you're in and we will try to locate it. Don't include personal info, just the state.
I just tried and couldn't get any of California Labor links to work. Their web site mey be down right now.
Division of Labor Standards Enforcement - California Department of Labor:
www.dir.ca.gov/dlse/
Contact info:
Please email questions complaints or enforcement tips to
[email protected].