Welcome to the forum as there are not many here that are on the proper side of the Sierra's.
I'm kind of confused a little bit from what you said regarding Licensing.
I hold both state pest and contractor license, Have to pull business licenses for every city I work in as well as the county of san Mateo, the City and County of San Francisco and as well as SFO contractor license.
Take a wild guess but since you said placer county, I'm assuming that your up by Roseville, Auburn area.(Sister lives in Newcastle)
When you're doing hauling, what kind of stuff are you hauling?