Handgunlaw.us is a good reference and easily accessible from a smart phone. Not so sure the advice about not telling anyone.....like the police officer who may stop you for what ever....(speeding?) and the first thing they will ask is "are there any weapons in the vehicle".....if you think your best move is to lie to him go right ahead and take your chances. It is vital to know and understand the laws, and your rights too, if you are going to carry a firearm in your RV with you around the country. I am one who will not set foot into any state that would deny citizens their right to self defense.