; and (VI) facilitates completion of Federal and State agency studies, reviews, and any other procedures required prior to, or concurrent with, the preparation of the environmental document of the Commission required under the National Environmental Policy Act of 1969, to the maximum extent practicable. (3) Adherence to schedule (A) In general The Commission, Federal, and State agencies with responsibility for a Federal authorization, the license applicant, and all other agencies and other participants in proceedings for Federal authorizations for the project shall meet the deadlines established by the schedule developed under paragraph (2). (B) Extension of schedule deadlines (i) Federal authorizations A Federal or State agency that is unable to complete its disposition of a Federal authorization by the deadline set forth in the schedule established by the Commission under paragraph (2) shall, not later than 30 days prior to such deadline, file for an extension with the Commission. The Commission shall issue a one-time extension of up to 90 days to any such Federal or State agency upon a demonstration of good cause. (ii) Other extensions The Commission may grant extensions requested by the license applicant or other licensing participants to facilitate settlement, address unforeseen circumstances, or accommodate other showings of good cause if the Commission determines that any such extension would reduce the overall time period for decisionmaking on required Federal authorizations for the project, increase the administrative efficiency of the processes for Federal authorizations, or improve the quality of information available to Federal and State agencies with a responsibility for a Federal authorization. (iii) Reissuance of schedule If the Commission grants an extension under this paragraph, the Commission shall reissue the schedule and applicable deadlines to reflect the extension of time granted. (C) Limitation Notwithstanding the Commission’s authority to extend the schedule as provided in subparagraph