FYI jim - in your state Ridgefield Port of Entry is famous as most driver-harassing crew in the nation.
But yes, Nevada doesn't recognize commercial pickups.
Pickup is pickup here and my registration is fraction of what I used to pay in CA. No DOT scales in Las Vegas area neither. I think I have seen 1 in Reno area, but never open.
Thinking about avoiding scales becouse you come from different state?
More and more stations have computer-controlled displays that flag vehicles who need to pull over and who can pass.
Don't think you want to ignore those.