Last month, The Department of Labor released the latest iteration of their Employee Rights Under Fair Labor And Standards Act Poster, which employers are required to display.
Some of the information included is the current minimum wage rate of $7.25 an hour, as well as other pertinent notes/rules regarding child labor, tip credit, overtime, and the PUMP Act, which requires that employers provide nursing employees a reasonable amount of time and a place (not including a bathroom) that is shielded from view and free from intrusion where they can express breast milk whenever they need to for one year after the birth of the child.
You can find that FLSA poster here.