The head of the Environmental Protection Agency visits Missouri to tout the benefits of the new Clean Air Nonroad Diesel Rule. EPA Administrator Mike Leavitt says emission levels from construction, agricultural and industrial diesel-powered equipment will be cut by more than 90-percent with the removal of sulphur from diesel fuel. He says we’ll see a gradual phasing in of the cleaner fuel, much in the same way that unleaded gasoline was phased in because making changes overnight would be a mistake. Leavitt says both urban and rural Missouri will benefit from cleaner air … and there’ll be a visible benefit in places like Kansas City and St. Louis with the elimination of those big puffs of black smoke from buses and other vehicles