The record of decision making Yellowstone National Park winter plan reality was signed by Intermountain Regional Director John Wessels late last week. The adopted plan calls for the Park to manage oversnow vehicles based on their overall impacts to air quality, soundscapes, wildlife and visitors, rather than focusing on the number of snowmobiles and snowcoaches allowed in the park each day. The Park will allow up to 110 “transportation events” a day, initially defined as either one snowcoach or on average a group of seven snowmobiles. No more than 50 transportation events per day will be allocated for groups of snowmobiles. The next step, says Park Spokesman Al Nash is to revise and publish a final regulation. Nash says there won’t be any changes in operations this year and will operate the way they have in recent years. The changes will start the following year. The final regulation is expected to be published in the Federal Register no later than December 15th in order to allow the park to open for the 2013/2014 winter season.