In Md you can get historic on anything over 20y/o and it exempts you from have to get an inspection. So every old pos people reg historic. I've even seen historic tags on falling apart pos church buses and ratty work trucks. Md inspection is tough. They measure brake lining and all kinds of crap, oil leaks , rust. Look for nicks in sidewalls, play in the steering column and on and on. But, you only have to do it once.