At the Hillsboro DMV, the guy only cared that it was homemade. So $182 later I walk out with a plate and a title & registration in the mail. I moved the RTT over that night. I also tested my cheapo bike rack on the back hitch of the trailer. I was also debating where to put the plate. I like the clean look of the tailgate and I don't really want to make holes in the fenders so I ordered a set of magnets.