Familiarize with U.S Labor Laws

I will be moving to SF in a month and I wanted to familiarize myself with the U.S. labor laws.

Harry, the U.S. employment Act explains all employees under a service contract in detail… It also mentions that interns will receive financial compensation for additional work hours and working on public holidays and rest days. Interns are also employees engaged within an official agreement. Please go through the laws in detail