Ca. is one of the states that allows take of pigs as a non native type critter but they do not honor dog hunting at all or in limited use and location.
They also over complicate the whole situation regarding permitting etc...
I do not know the details further than that but that alone limits their ability to control ferals while claiming to be "protecting" state resources!!! Feral hogs are never a "RESOURCE"!!!! They are always presenting a "COST"!!!