CFR /  Title 25  /  Part 15  /  Sec. 15.103 How do I begin the probate process?

As soon as possible, contact any of the following offices to inform us of the decedent's death:

(a) The agency or BIA regional office nearest to where the decedent was enrolled;

(b) Any agency or BIA regional office; or

(c) The Trust Beneficiary Call Center in OST.