1988—Pub. L. 100–666 substituted “Commissioner” for “Commission” wherever appearing.

1980—Pub. L. 96–305 inserted provision authorizing the Commission, in the event that the tribes agree on an exchange of lands, to make available 125 per centum of the relocation benefits provided in sections 640d–13 and 640d–14 of this title to members of either tribe living on lands to be exchanged to other than his or her own tribe, provided that within 180 days of the agreement, a majority of the adult members of the tribe who would be eligible to relocate from exchanged lands contract with the Commission to relocate within 12 months of the agreement or such later time as the Commission determines and to pay these additional benefits only to those who actually relocate within such period.