Student loan transferred?

<p>I am an adult. I have a student loan that I'm paying back from my graduate school education. The loan is 10 years old (I'm in the extended repayment plan). I just found out they transferred my loan from the Federal Government (DSL servicer) to a private company I've never heard of. Are they allowed to do that? Does it impact me in any way? It makes me uncomfortable (Maybe I just don't like change...lol)</p>