The laws and regulations controlling employee document retention are full of minefields. Many federal laws specify different document retention periods depending on what is contained within the document.
Just to name a small number of the federal laws that have specific document retention rules, we can start with the Age Discrimination in Employment Act, Title VII of the Civil Rights Act, the Immigration and Nationality Act, Fair Labor Standards and National Labor Relations Act. The list goes on.
It also includes Executive Orders, State specific laws, and at times even county or city level ordinances. Not only do the various laws require that documents be retained for differing periods of time, but sometimes these documents must even be segregated from any other documents.