For Minnesota:
Minnesota State Statute 168.10 REGISTRATION; COLLECTOR VEHICLE.
Subd. 1h.Collector military vehicle.(a) A motor vehicle, including a truck, shall be listed and registered under this section if it meets the following conditions:
(1) it is at least 20 years old;
(2) its first owner following its manufacture was a branch of the armed forces of the United States and it presently conforms to the vehicle specifications required during the time of military ownership, or it has been restored and presently conforms to the specifications required by a branch of the armed forces for the model year that the restored vehicle could have been owned by that branch of the armed forces; and
(3) it is owned by a nonprofit organization and operated solely as a collector's vehicle. For purposes of this subdivision, "nonprofit organization" means a corporation, society, association, foundation, or institution organized and operated exclusively for historical or educational purposes, no part of the net earnings of which inures to the benefit of a private individual.
(b) The owner of the vehicle shall execute an affidavit stating the name and address of the person from whom purchased and of the new owner; the make, year, and model number of the motor vehicle; the manufacturer's identification number; and the collector military vehicle identification number, if any, located on the exterior of the vehicle. The affidavit must affirm that the vehicle is owned by a nonprofit organization and is operated solely as a collector's item and not for general transportation purposes. If the commissioner is satisfied that the affidavit is true and correct and the owner pays a $25 tax and the plate fee authorized under section 168.12, the commissioner shall list the vehicle for taxation and registration and shall issue number plates. The number plates shall bear the inscriptions "Collector" and "Minnesota" and the registration number, but no date. The number plates are valid without renewal as long as the vehicle is in existence in Minnesota. The commissioner may revoke the plates for failure to comply with this subdivision.
(c) Notwithstanding section 168.09, 168.12, or other law to the contrary, the owner of a registered collector military vehicle is not required to display registration plates on the exterior of the vehicle if the vehicle has an exterior number identification that conforms to the identifying system for military vehicles in effect when the vehicle was last owned by the branch of the armed forces of the United States or in effect in the year to which the collector military vehicle has been restored. However, the state registration plates must be carried in or on the collector military vehicle at all times.
(d) The owner of a registered collector military vehicle that is not required to display registration plates under paragraph (c) may tow a registered trailer behind it. The trailer is not required to display registration plates if the trailer:
(1) does not exceed a gross weight of 15,000 pounds;
(2) otherwise conforms to registration, licensing, and safety laws and specifications;
(3) conforms to military specifications for appearance and identification;
(4) is intended to represent and does represent a military trailer; and
(5) carries registration plates on or in the trailer or the collector military vehicle towing the trailer.
Subd. 1i.Collector plate transfer.Notwithstanding section 168.12, subdivision 1, on payment of a transfer fee of $5, plates issued under this section may be transferred to another vehicle owned or jointly owned by the person to whom the special plates were issued or the plate may be assigned to another owner. In addition to the transfer fee a new owner must pay the $25 tax and any fee required by section 168.12, subdivision 2a. The $5 fee must be paid into the state treasury and credited to the vehicle services operating account under section 299A.705, subdivision 1. License plates issued under this section may not be transferred to a vehicle not eligible for the collector's vehicle license plates.
Most of the "1993" deuces are actually 1994 or later. Mine already had MN plates on it (private sale). From what I understand, you need to wait on receiving the title before you can apply for the state licence plates (same as any other vehicle). After the 20 year requirement, you can change to collector status on it. I would recommend calling the DMV for the specifics on the temp permit. That is one issue I didn't have to deal with. Hope this helps...