You are removed from CASS the day your orders become effective. On a "case-by-case" basis, your ACP can approve your jumpseating on Fedex equipment. Dependent upon who your ACP is, this can either be relatively simple or comparable to a visit to the dentist. Try to call him, leave a voice mail, he'll call you back and ask you to put it in writing in the form of an email with an explanation of the "unusual circumstances" requiring your use of a jumpseat. And MOST airlines are now so oriented to knowing that if you are a pilot you SHOULD be in CASS system. So, be prepared for a big butt-pain when you show up at the counter and ask to jumpseat but you're not in CASS. Half the agents currently struggle to figure out how to get you listed through CASS and this is just another reason they'll have to fuss at you for making them work when you bring no revenue to their airline. Not a mode of transportation I would use if I only had a weekend or a 96. Orbitz/Priceline is much easier and you have a guaranteed seat. FWIW............