the trailer needs to be inspected by a state inspection station that has trailer endorsement. They will take 4 photos of it, plus you'll need to weigh it to put the unladen weight on the form. The form must be filled out correctly and notarized. It then gets sent to Harrisburg who will issue the title and a VIN plate to attach to the trailer tongue. This will most likely take you about two months or more until you finally get the title, VIN plate, and license plate.