(a) Not later than the 91st day before the effective date of a substitution under Section 274.101, the parties to the substitution agreement shall send notice of the substitution to:
(1) any other fiduciary;
(2) each surviving settlor of a trust relating to the fiduciary account;
(3) each issuer of a security for which the affiliated bank administers the fiduciary account;
(4) the plan sponsor of each employee benefit plan relating to the fiduciary account;
(5) the principal of each agency account; and
(6) the guardian of the person of each ward that has the fiduciary account resulting from a guardianship.
(b) If the substitution does not cause a change in the situs of administration of a fiduciary account, the parties to the substitution agreement shall also send notice of the substitution to each person who is readily ascertainable as a beneficiary of the account because the person has received account statements or because a parent, conservator, or guardian of a minor beneficiary has received account statements on the minor’s behalf.

(c) If the substitution causes a change in the situs of administration of a fiduciary account, the parties to the substitution agreement shall also send notice of the substitution to:
(1) each adult beneficiary of a trust relating to the account;
(2) each parent, conservator, or guardian of a minor beneficiary receiving or entitled to receive current distributions of income or principal from the account; and
(3) each person who individually or jointly has the power to remove the fiduciary being substituted.
(d) The notice must be sent by United States mail to the person’s current address as shown on the fiduciary’s records. The fiduciary shall make a reasonable attempt to ascertain the address of a person who does not have an address shown on the fiduciary’s records.