California Code, Probate Code - PROB § 10500

(a) Subject to the limitations and conditions of this part, a personal representative who has been granted authority to administer the estate under this part may administer the estate as provided in this part without court supervision, but in all other respects the personal representative shall administer the estate in the same manner as a personal representative who has not been granted authority to administer the estate under this part.

(b) Notwithstanding subdivision (a), the personal representative may obtain court supervision as provided in this code of any action to be taken by the personal representative during administration of the estate.