25 CFR § 224.135 - Under what circumstances may the Secretary conduct additional reviews and evaluations?

---
identifier: "/us/cfr/t25/s224.135"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "25 CFR § 224.135 - Under what circumstances may the Secretary conduct additional reviews and evaluations?"
title_number: 25
title_name: "Indians"
section_number: "224.135"
section_name: "Under what circumstances may the Secretary conduct additional reviews and evaluations?"
chapter_name: "BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR"
subchapter_number: "I"
subchapter_name: "ENERGY AND MINERALS"
part_number: "224"
part_name: "TRIBAL ENERGY RESOURCE AGREEMENTS UNDER THE INDIAN TRIBAL ENERGY DEVELOPMENT AND SELF DETERMINATION ACT"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "25 U.S.C. 2 and 9; 25 U.S.C. 3501-3504; Pub. L. 109-58; Pub. L. 115-325."
regulatory_source: "73 FR 12821, Mar. 10, 2008, unless otherwise noted."
cfr_part: "224"
---


# 224.135 Under what circumstances may the Secretary conduct additional reviews and evaluations?

The Secretary may conduct additional reviews and evaluations:

(a) At a Tribe's request;

(b) As part of an investigation undertaken when the Tribe notifies the Secretary of a violation or breach;

(c) As part of an investigation undertaken because of a petition submitted under subpart E of this part;

(d) As follow-up to a determination that harm or the potential for harm to a physical trust asset, previously identified in a periodic review and evaluation, exists; or

(e) As the Secretary determines appropriate to carry out the Secretary's trust responsibilities.