California Code, Probate Code - PROB § 2033

(a) If a petition for the appointment of a conservator has been filed in a court of this state and a conservator has not yet been appointed, any person entitled to notice of a hearing on the petition may move to dismiss the petition on the grounds that the proposed conservatee is a member of an Indian tribe with jurisdiction.  The petition shall state the name of the Indian tribe.

(b) If, after communicating with the named tribe, the court of this state finds that the proposed conservatee is a member of an Indian tribe with jurisdiction, it may grant the motion to dismiss if it finds that there is good cause to do so.  If the motion is granted, the court may impose any condition the court considers just and proper, including the condition that a petition for the appointment of a conservator be filed promptly in the tribal court.

(c) In determining whether there is good cause to grant the motion, the court may consider all relevant factors, including, but not limited to, the following:

(d) Notwithstanding subdivision (b), the court shall not grant a motion to dismiss pursuant to this section if the tribal court expressly declines to exercise its jurisdiction with regard to the proposed conservatee.