There's no minimum severance (at least at the national level), as far as I know. (http://www.dol.gov/dol/topic/wages/severancepay.htm) ... In theory it could be in your contract, but I personally can't recall ever seeing a contract that had such a clause. The standard is "at will" - if you come in to work one day and they don't need you any more, that's it, just the same as you don't really have to give two weeks notice when you leave (but most people do for the sake of the relationship.)