Q. If I was transferring to another agency and I want to take three days off prior to starting my new position, is there anything in the CFR that permits me from taking my annual leave prior to my transfer?
A. I think you meant to say prevents rather than permits. While there is nothing that prevents you from taking annual leave immediately before transferring to another agency, you can only do that if your request for leave has been approved by your supervisor (or whomever has leave approval authority).
