Section 30.271 - How must the tribe pay for the interests it purchases?(a) A tribe must pay the full fair market value of the interests purchased, as set forth in the appraisal or other valuation report, or as determined after hearing under § 30.268 , whichever is applicable.(b) Payment must be made within 2 years from the date of decedent's death or within 1 year from the date of notice of purchase, whichever is later.