Originally Posted by family wagon
My understanding is that heavy commercial vehicles, even those registered out of state, would be required to comply with the rules (and thus you see the CA-compliant sticker showing up on trucks across the nation). I'm not sure how they go about implementing that, though.. deny passage of the vehicle at ports of entry? I think crazycal is right; I think I remember reading about an exemption for motorhomes and other low-usage vehicles..
Correct, there are different rules for commercial vehicles than private ownership vehicles and this whole thing sounds like someone doesn't understand the difference or else thinks his wanderlodge makes him a trucker.