I am planning to purchase my first motor home, Probably a 40' Safari Ivory DP. This may seem ridiculous but I am a newbie. Do I have to stop at weigh stations? Go ahead, you can laugh now!??
I agree with "Gene&Ginny". It's a valid question. The road signs usually say all vehicles when referring to trucks and trailers and can be confusing to a newbie. Just remember that in most cases where there is signage about large vehicles, motor homes are exempted.
My personal feeling is that sometime in the future if the States/Government can find a way to charge a fee, they'll start weighing coaches.