Originally Posted by
vgb2001
Could you recycle the SWU you had orginally used for your Z upgrade on the delta flight or did you have to use a new one?
I did. Delta did not have my cert number since I need not clear at time of booking and was on the wait list.
I decided it's best to keep the number until they actually need it. While that seems a bit stressful for the GA when clearing at the gate, it keeps things more orderly on my end.