Do Recommendation Letters Have to Be on Letterhead?

[kolbjess]

I'm resubmitting my application, and I had a former supervisor write me an awesome recommendation letter. However, since she no longer works at the same organization she cannot use the letterhead. Therefore, should I have her submit the previous letter of reference with the letterhead?? or can she update/revise the letter of reference and submit without any letterhead??

[UGoLong]

If she no longer works where she did and she writes a great letter for you, I'd probably just ask her to do one without letterhead or wherever she works now. If she does the latter, just make sure she mentions that she knew you at a different place.