You cannot drive on the interstate highways, @Remington. Those are federal roadways (e.g., I-75). Further, not ALL state highways are open to ORV use. The MDNR and local governments get to decide. Beyond that, there are equipment and/or PPE requirements depending upon the ORV, operator, and passengers, time restrictions, speed restrictions, location (relative to roadway) restrictions, etc.. Far too many for me to keep track of, that's for sure. Just to be clear, you can't just strap on a triangle and go wherever and whenever you want. Otherwise, there would be absolutely no benefit to making an ORV 'street legal'.