Except as provided in subsection (d) of this section, all rights and privileges of the Tribe and its members under any Federal treaty, Executive order, agreement, or statute, or under any other authority which were diminished or lost under the Act of August 18, 1958 (Public Law 85–671;
72 Stat. 619), are hereby restored, and the provisions of such Act shall be inapplicable to the Tribe and its members after December 27, 2000.