Upon the completion of the tribal membership roll and upon the written request of the Interim Council, the Secretary shall conduct, by secret ballot, an election to adopt a constitution for the Tribe. Such constitution shall be submitted by the Interim Council to the Secretary no later than 1 year following October 31, 1990. Absentee balloting shall be permitted regardless of voter residence. In every other regard, the election shall be held according to section
476 of this title.