1972 california commercial license plate.

[Stocker]

Originally Posted by PbFut

In California a c10 does not require a commercial plate. All c20 require commercial unless a permanent camper was mounted. If a c10 has commercial plates it is because the truck was likely registered in a corporate name and used as a commercial vehicle. If you have a c10 registered as commercial you can save a few bucks a year by changing to private.

It's always been my understanding that California requires commercial plates for all pickups (including my wife's Tacoma) unless the bed is covered at all times.
For instance, if your truck has a tonneau cover or a camper shell, you can get non-commercial plates.