Thanks for posing this question, towpro. I don't get my truck camper until spring, but this is something I'd been thinking about.
In my case, my truck is licensed in PA, but I've been keeping it in MT, where I'm buying the truck camper.
I think I'll see how visible the license will be if I leave it on the truck. It seems to me that if the license is clearly visible from (say) 20' behind by some who is sitting in another vehicle, that would be okay. In my opinion, anyone who says they can't see it from 10' shouldn't be that close in the first place.
