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 P—Retrocession and Reassumption Procedures (§900.240 to §900.256) > 900.243—What effect will an Indian tribe or tribal organization's retrocession have on its rights to contract?