Cal. Prob. Code § 2003

If a conservatorship is transferred under this article from a court of this state to the court of a California tribe or from the court of a California tribe to a court of this state, the order that provisionally grants the transfer may expressly provide that specified powers of the conservator will not be transferred. Jurisdiction over the specified powers will be retained by the transferring state and will not be included in the powers that are granted to the conservator in the state that accepts the transfer.