Any constitution or bylaws ratified and approved by the Secretary shall be revocable by an election open to the same voters and conducted in the same manner as provided in subsection (a) of this section for the adoption of a constitution or bylaws.
In addition to all powers vested in any Indian tribe or tribal council by existing law, the constitution adopted by said tribe shall also vest in such tribe or its tribal council the following rights and powers: To employ legal counsel; to prevent the sale, disposition, lease, or encumbrance of tribal lands, interests in lands, or other tribal assets without the consent of the tribe; and to negotiate with the Federal, State, and local governments. The Secretary shall advise such tribe or its tribal council of all appropriation estimates or Federal projects for the benefit of the tribe prior to the submission of such estimates to the Office of Management and Budget and the Congress.
Departments or agencies of the United States shall not promulgate any regulation or make any decision or determination pursuant to the Act of June 18, 1934 (25 U.S.C. 461 et seq., 48 Stat. 984)  as amended, or any other Act of Congress, with respect to a federally recognized Indian tribe that classifies, enhances, or diminishes the privileges and immunities available to the Indian tribe relative to other federally recognized tribes by virtue of their status as Indian tribes.
Any regulation or administrative decision or determination of a department or agency of the United States that is in existence or effect on May 31, 1994, and that classifies, enhances, or diminishes the privileges and immunities available to a federally recognized Indian tribe relative to the privileges and immunities available to other federally recognized tribes by virtue of their status as Indian tribes shall have no force or effect.