Hi all. I am late to the thread, but can add some value as I own several MPPs. A few points in response to this thread as a whole:
1) The USPS still issues MPP numbers to individuals for philatelic purposes. My first MPP was obtained in November of 2013. I now have them in three different towns, one town in which I am a "pioneer" of sorts, holding the first MPP.
2) There are two "authorized" MPP formats - Type A and Type Z - but other designs can also be approved, provided the essential information is on the stamp: city, state, zip (Type A) or "Mailed from Zip XXXXX" (Type Z), plus the permit number. MPPs, in my experience, are governed by each post office separately. That is, some will (wrongfully) refuse one from using an MPP, while others are quite liberal and essentially throw away the DMM in regards to designs (pictorial postmarks, for ex.).
3) There is no prohibition to multiple designs associated with a single permit, unless the issuing office prohibits such. I have three different designs for my MPP #475 in San Antonio, Texas. The key is: If you create a new design that it is approved and that the PO has it on record for cross referencing. This is so they know you are the one using the MPP and mot someone else using your number.
4) you do not have to reside near the office. I have two permits outside of the city I live - one twenty minutes away, the other an hour and twenty minutes away. Since postmarked mail must be dropped off at the office – and not dropped in any blue mail box, etc – I often mail my postmarked mail, enclosed in a large envelope, to the individual at bulk mailing at the PO. Then they enter it into the mails as if I had dropped it off in person. This remailing typenof thing is convenient if younwant to use an MPP from afar.
5) The individual post office that issues you the MPP number is the only location you should process your mail through, though, in larger areas, the GMF could process it as well. The point Inwould stress is that serious MPP users get a system established for their mail, which requires getting to know the different clerks who are aware of what you're doing. As it's been pointed out, many are clueless about MPPs. This said, while it may be possible to have your mail processed at a GMF, stick with thenlocal office for the process' sake.
6) MPP mail will be overpostmarked with a machine cancel if a clerk at your office doesn't handle it properly. MPP holders are responsible for communicating this until it sticks- ask for your mail to placed in its own bin and stress that it has been postmarked according to DMM permissions and that it is philatelic. I include a standard descriptive print-out with each mail batch I drop to be placed in the been. MPP cancelled mail should be sent directly to the OCR.
If anyone has questions about this I may be able to help. Also, the MPPClub is a great group, but has been inactive lately. This is unfortunate, though may be impermanent.
Lastly, I would be interested in swapping xovers with other MPP holders. Please contact me!
My first MPP cancel is here, pressed yesterday:
https://www.stampcommunity.org/uplo...11_image.jpg-K.E.