CFR > Title 25 - Indians > CHAPTER V—BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR, AND INDIAN HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES > PART 900—CONTRACTS UNDER THE INDIAN SELF-DETERMINATION AND EDUCATION ASSISTANCE ACT > SUBPART K—Waiver Procedures (§900.140 to §900.148) > 900.142—Does an Indian tribe or tribal organization's waiver request have to be included in an initial contract proposal?