; (2) establish and maintain a numbered register of documented petitions which have been determined ready for active consideration; (3) maintain a numbered register of letters of intent or incomplete petitions based on the original date received by the Department of the Interior; and (4) use the register of letters of intent or incomplete petitions to determine the order of review by the Assistant Secretary if two or more documented petitions are determined ready for review on the same date. (e) Report Not later than 1 year after notifying the petitioner that review of the documented petition has begun, the Assistant Secretary shall— (1) submit a report including a summary of the evidence, findings, petition, and supporting documentation, to the Committee on Natural Resources of the House of Representatives and the Committee on Indian Affairs of the Senate; (2) notify the petitioner and interested parties that the review is complete and the report required under paragraph (1) has been submitted; (3) provide copies of the report to the petitioner and interested parties; and (4) provide copies of the report to informed parties and others upon written request. 11. Clarification of Federal recognition authority (a) Act of Congress required An Indian group may receive Federal acknowledgment (or reacknowledgment) as an Indian tribe only by an Act of Congress. The Secretary may not grant Federal acknowledgment (or reacknowledgment) to any Indian group. (b) Previous acknowledgment This Act shall not affect the status of any Indian tribe that was federally acknowledged before the date of the enactment of this Act. 12. Force and effect of regulations Part 83 of title 25, Code of Federal Regulations, shall have no force or effect.