Blue Earth County will prohibit smoking and the use of all tobacco products on county government grounds beginning April first. The Blue Earth County Commissioners unanimously passed The Smoking and Tobacco-Free Policy at its meeting on Tuesday. The new policy prohibits the use of smoking and any tobacco or nicotine products in county parks, walkways, parking lots and personal vehicles parked on County-owned grounds. County officials say exceptions include campsites, personal vehicles in County parks and open water.