(a) When a revocable trust or any portion of a revocable trust becomes irrevocable because of the death of one or more of the settlors of the trust, or because, by the express terms of the trust, the trust becomes irrevocable within one year of the death of a settlor because of a contingency related to the death of one or more of the settlors of the trust, the trustee shall provide a true and complete copy of the terms of the irrevocable trust, or irrevocable portion of the trust, to any beneficiary of the trust who requests it and to any heir of a deceased settlor who requests it. (b) The trustee shall, for purposes of this section, rely upon any final judicial determination of heirship. However, the trustee shall have discretion to make a good faith determination by any reasonable means of the heirs of a deceased settlor in the absence of a final judicial determination of heirship known to the trustee.
