California Code, Probate Code - PROB § 17353

If a trust company is appointed as a successor trustee of a trust which, at the time of the appointment, is subject to continuing court jurisdiction because it was not removed pursuant to Section 17352, the successor trustee shall comply with Section 17351. For the purpose of complying with Section 17351, the date of appointment of the successor trustee shall be treated as the date of initial funding of the trust.