Per fed 571.110 FMVSS
S9.3.3 An RV load carrying capacity label (Figures 3 or 4) must be:
(a) Permanently affixed and must be visibly located on the interior of the forward-most exterior passenger door on the right side of the vehicle or; at the option of the manufacturer,
(b) A temporary version of the RV load carrying capacity label (Figures 3 or 4) must be visibly located on the interior of the forward-most exterior passenger door on the right side of the vehicle. A permanent motor home or RV trailer supplemental label (Figures 5 or 6) must be permanently affixed within 25 millimeters of the placard specified in S4.3 for motor homes and S4.3.5 for RV trailers.