California Code, Probate Code - PROB § 19006

(a) If a trustee of a trust established by the deceased settlor files, publishes, and serves notice as provided in Section 19003 the protection from creditors afforded that trustee and trust shall also be afforded to any other trusts established by the deceased settlor and the trustees and beneficiaries of those trusts.

(b) If the personal representative of the deceased settlor's probate estate has published notice under Section 8120 and given notice of administration of the probate estate of the deceased settlor under Chapter 2 (commencing with Section 9050) of Part 4 of Division 7, the protection from creditors afforded the personal representative of the deceased settlor's probate estate shall be afforded to the trustee and to the beneficiaries of the trust.

(c) In the event that, following the filing and publication of the notice set forth in Section 19003, there shall be commenced any proceeding under which a notice pursuant to Section 8120 is required to be published, then the trustee shall have a right of collection against that probate estate to recover the amount of any debts paid from trust assets that would otherwise have been satisfied (whether by law or by direction in the deceased settlor's will or trust) by the property subject to probate proceedings.