Cheyenne River Sioux Tribe Equitable Compensation Amendments Act of 2006

(This measure has not been amended since it was reported to the Senate on September 20, 2006. The summary of that version is repeated here.)

Cheyenne River Sioux Tribe Equitable Compensation Amendments Act of 2006 - Amends the Cheyenne River Sioux Tribe Equitable Compensation Act to make member landowners eligible for the additional financial compensation provided to the Cheyenne River Sioux Tribe for the acquisition by the federal government of 104,492 acres of land of the Tribe and member landowners for the Oahe Dam and Reservoir project. Defines member landowner as a member of the Tribe (or an heir of such a member) that owned land on the Cheyenne River Sioux Reservation that was acquired by the United States for the Oahe Dam and Reservoir Project of the Pick-Sloan Missouri River Basin program.

Directs the Secretary of the Treasury to make five annual deposits into the Cheyenne River Sioux Tribal Recovery Trust Fund of: (1) $58,144,591.60; and (2) an additional amount equal to the interest that would have accrued under certain circumstances.

Directs the Secretary to invest the Fund only in interest-bearing obligations of the United States according to specified requirements, including separate investments of principal and interest from two separate accounts within the Tribal Recovery Trust Fund.

Authorizes the plan prepared for the use of payments to the Tribe to provide for payment of additional compensation to member landowners; except that payments of additional compensation shall not be deposited or transferred into any member landowner's Individual Indian Money account, and shall not exceed an amount equal to 44.3% of the amount transferred by the Secretary of the Interior to the Tribe.

Requires the Secretary of the Interior to assist the Tribe in claims processing by providing any record requested to identify the heirs of member landowners within 90 days after receiving a request.

Declares that, upon deposit of the final payment into the Fund, all claims that the Tribe has or may have against the United States for the taking of tribal land or property for the Project shall be extinguished.