You likely won't have any issues on the California end although if you did it at large enough quantity you'd want a nursery permit and the permits to ship to states that have ag restrictions. (Snail master permit, Sudden Oak Death, etc.) but not really necessary if you are doing small amounts. I had a package get abducted by the USDA in Missouri even though I had permits, no idea what happened there. Super weird. Otherwise it's pretty easy shipping plants around with no permits.
