A & P checks the a/c and finds it safe for the intented flight. He then calls the local FAA who sends him a ferry permit by fax (unless he is close enough to get at office) He makes a log book entry that a/c is safe for the flight and includes any restrictions from ferry permit usually day light VFR. I supose a DAR could issue one but he would charge. The FAA always issues for no cost. Any licences pilot can fly the A/C.
