Governor Doyle signed legislation setting a 55 mile per hour nighttime speed limit for snowmobiles next winter. Supporters of the change say itâ€™s designed to reduce crashes and fatalities. State snowmobile education administrator Gary Eddy has said a nighttime speed limit would make it easier for wardens to pull over riders they suspect are intoxicated. The Association of Wisconsin Snowmobile Clubs supported the new speed limit. Originally, the legislation would have put the speed limit in place for two years and included money for Department of Natural Resources enforcement teams to patrol state trails. But the bill Doyle signed into law puts the speed limit in place only for one year and stripped the money for enforcement teams.