Generally speaking, RV's are not considered a Truck or Bus. However, in some cases there are truck and bus restrictions that could apply to RV's due to height, weight, or HAZ-MAT issues. Know your RV specifications, especially overall height (remember to account for any airbag lift) and GVRW for overpasses and bridges. In NJ there are sections of the GSP and PSP that do allow RV's, but you must stay in the CENTER LANE because the overpass curves down on the outer lanes to around 11' or 10' in some places. On some farm roads, the RV may be to heavy for some bridges, especially if it's a 3-axle bus chassis frame RV (aka Skoolie). Remember to account for your onboard water (all three tanks) as you have 8.35 pounds per gallon. 100 gal fresh, 75 black and 75 gray is 2,085 pounds. Make sure your GVRW calculations account for all three tanks as full, so you are able to accuratly calculate all the est of the things you have with you. Remember to add your passengers weight as well. I recently worked an RV accident that was over GVRW because they had lots of stuff with them, full water tanks, added three 12V 100AH AGM batteries to the single 12V 100AH house battery housing on the front frame, and the driver and all six passengers were over 250 lbs. Granted they were over by only about 1,800 lbs, but over GVRW is over GVRW. Especially when your insurance agent gets involved.
If you are close to GVRW, leave your fresh water tank empty (your gray and black should be empty when traveling anyway) and save that 900 pounds as your safety buffer.
