CFR › Title 25 › Part 13Part 13 — Tribal Reassumption of Jurisdiction over Child Custody ProceedingsSubpart A — Purpose§ 13.1— Purpose.§ 13.2— Information collection.Subpart B — Reassumption§ 13.11— Contents of reassumption petitions.§ 13.12— Criteria for approval of reassumption petitions.§ 13.13— Technical assistance prior to petitioning.§ 13.14— Secretarial review procedure.§ 13.15— Administrative appeals.§ 13.16— Technical assistance after disapproval.