CFR > Title 25 - Indians > CHAPTER VI—OFFICE OF THE ASSISTANT SECRETARY, INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR > PART 1000—ANNUAL FUNDING AGREEMENTS UNDER THE TRIBAL SELF-GOVERNMENT ACT AMENDMENTS TO THE INDIAN SELF-DETERMINATION AND EDUCATION ACT > SUBPART O—Trust Evaluation Review (§1000.350 to §1000.367) > 1000.353—What are “trust functions” for the purposes of the trust evaluation process?