; and (2) provide to the Indian tribe a written notice of approval or disapproval of the appraisal. (c) Failure of Secretary To Approve or Disapprove If, after 60 days, the Secretary has failed to approve or disapprove any appraisal received, the appraisal shall be deemed approved. (d) Option to Indian Tribes To Waive Appraisal (1) An Indian tribe wishing to waive the requirements of subsection (a), may do so after it has satisfied the requirements of paragraphs (2) and (3). (2) An Indian tribe wishing to forego the necessity of a waiver pursuant to this section must provide to the Secretary a written resolution, statement, or other unambiguous indication of tribal intent, duly approved by the governing body of the Indian tribe. (3) The unambiguous indication of intent provided by the Indian tribe to the Secretary under paragraph (2) must include an express waiver by the Indian tribe of any claims for damages it might have against the United States as a result of the lack of an appraisal undertaken. (e) Definition For purposes of this subsection, the term appraisal includes appraisals and other estimates of value. (f) Regulations The Secretary shall develop regulations for implementing this section, including standards the Secretary shall use for approving or disapproving an appraisal. . (b) Conforming amendment The table of contents of the Energy Policy Act of 1992 ( 42 U.S.C. 13201 note) is amended by adding at the end of the items relating to title XXVI the following: Sec. 2607. Appraisal reforms. . 3. Standardization As soon as practicable after the date of the enactment of this Act, the Secretary of the Interior shall implement procedures to ensure that each agency within the Department of the Interior that is involved in the review, approval, and oversight of oil and gas activities on Indian lands shall use a uniform system of reference numbers and tracking systems for oil and gas wells. 4. Environmental reviews of major Federal actions on Indian lands Section 102 of the National Environmental Policy Act of