The Revolving Door
Sometimes Government employees leave Government service and go to work for contractors. It's also true that employees working for contractors sometimes enter Government service. As a result, there are a number of ethics issues that arise from these changes in employers. This is sometimes called the "revolving door."
Not surprisingly, there are laws and regulations that cover these situations. There are several laws and regulations that govern what a Government employee must do while seeking or negotiating future employment with a contractor, as well as governing what a former Government employee may do once the employee goes to work for a contractor.
There are also laws and regulations that may limit what you may work on if you accept employment with the Government.
Let's examine a few of these areas...