What a temporary tag actually is
A temporary tag is a time-limited paper plate or sticker so you can drive while metal plates and the title file catch up. It is not registration forever, and it is not a title.
People treat the paper on the bumper like real plates. Or they fold it and call it a title. Those are three different things.
A U.S. title is the state’s ownership sheet for one VIN. Metal plates and the glovebox card are the lasting road permit — registration. A temporary tag is the short permit in between: a paper plate, or a sticker in the glass, with an end date printed on it. The dealer hands you one when the car leaves without metal. A clerk can hand you one at a window. The name changes — temp plate, temp permit, TLP, TRP — but the job is the same. Time-limited. Not stamped steel.
California prints a temporary license plate when a licensed dealer sells a car that does not already wear plates. Cursive California, a number, a report-of-sale line, an expiration. Ninety days from the sale, or until the metal shows up, whichever comes first. That is one state’s paper. It is not a national form.
Illinois used to print a yellow temporary permit and X the month. Other states punch a date, slap a sticker in the rear glass, or call it an in-transit. The length is weeks or a couple of months, depending on the office. Do not read one state’s calendar as the country’s.
Texas stamps TEMPORARY REGISTRATION across a limited-use plate. The word is the tell. Limited. The metal you wait for is the lasting permit. The title in the file is the ownership sheet. If the paper has an expiration and it is not steel, you are holding the short one. When the date is gone, so is the permit.