Is there any laws regarding washing hands in the workforce?
yes, if you work at a restaurant, or a food company, and you should wash it no matter where you work.
In the food industry there is! Let's not get started on surgeons....
It's the honor system!
I do believe there is in hospitals and food sources... But hopefully people would do it anyway. That's pretty disrespectful, gross and unnatural to not wash hands after being in the bathroom. It's quick and easy, not too much to ask.
In restaraunts, grocery stores and if you work with anything that has to do with medicine then yes.