Cal. Prob. Code § 16323

Except as otherwise provided in the terms of a trust or this chapter, this chapter applies when this state is the principal place of administration of a trust or estate or the situs of property that is not held in a trust or estate and is subject to a life estate or other term interest described in subdivision (b) of Section 16322. By accepting the trusteeship of a trust having its principal place of administration in this state or by moving the principal place of administration of a trust to this state, the trustee submits to the application of this chapter to any matter within the scope of this chapter involving the trust.