MONROE - Twenty-two youth completed the 2009 Green County Tractor and Machinery Safety Course in various locations in Green County from March 24-April 23. Youth completed 24 hours of classroom and hands-on instruction in various aspects of tractor and machinery safety to comply with Wisconsin Act 455. Act 455 states that "No person may direct or permit a child under age 16 years to operate a farm tractor/self-propelled implement of husbandry on the highway unless the child has been certified as successfully completing a tractor and machinery operation safety course.