Cheyenne, WY – Snowmobiling in Yellowstone and Grand Teton National Parks is on again. Tuesday night, U-S District Judge Clarence Brimmer issued a temporary restraining order setting aside a ban on snowmobiles. Brimmer says without the order, companies that rely on park snowmobiling would suffer irreparable harm due to lost business. He ordered the Park Service to develop temporary rules for the remainder of the 2004 season. Brimmer's ruling apparently conflicts with an order by a US District Judge in Washington, DC. Emmet Sullivan struck down Bush Administration plans for snowmobiles and reinstated the Clinton-era ban. Following that order, the state of Wyoming asked Judge Brimmer to revive a case originally filed in 2000.