Provides information about the Washington State Food Worker Card. All food workers who serve unpackaged food or beverages must have a valid Washington State Food Worker Card. Food worker cards issued by another state are not valid in Washington. Washington State Food Worker Cards are valid anywhere in Washington. If getting a Food Worker Card for the first time, it is valid for 2 years. Renewed cards are valid for 3 years if renewed before your card expires (60 days or less before it expires).