This is dependent upon the state. California, for instance, doesn't say. Just putting it out there, as a guy has to eat: If you feel that the reason that they fired you was not sufficient enough, aka you really did just ask the woman out, I would go to a legal site and learn how to write them a letter indicating that you are going to sue them. Sometimes they settle quickly for a decent enough amount of money to get you back on your feet. They don't want to go through the legal battle. Even in an at will state. Also: Read this. http://www.hcareers.com/us/resourcecenter/tabid/306/articleid/662/default.aspx And ask your prior HR department what their policy is on communicating termination (do they communicate it at all) as well as termination reasons.