The sticker is issued to the vehicle and is non-transferable to another vehicle.
Of course, the issuance is through the vehicle owner's name.
If the vehicle is listed as a "club" vehicle it SHOULD be ok.
I would inquire with NPS national to find out if it is permitted on NPS property as a club or joint ownership venture. Just cover the bases, later might be too late.
Insurance is another issue.
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