Special Regulations; Areas of the National Park System, Yellowstone National Park

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This rule implements the amended Record of Decision for the 2011 Winter Use Plan/Environmental Impact Statement and governs winter visitation and certain recreational activities in Yellowstone National Park for the 2012-2013 winter season. The rule retains, for one additional year, the regulation and management framework that have been in place for the past three winter seasons (2009-2010, 2010-2011, and 2011-2012). Specifically, the rule retains provisions that require most recreational snowmobiles operating in the park to meet certain National Park Service air and sound emissions requirements; requires snowmobiles and snowcoaches in Yellowstone to be accompanied by a commercial guide; sets daily entry limits on the numbers of snowmobiles (up to 318) and snowcoaches (up to 78) that may enter the park; and prohibits traveling off designated oversnow routes.