The Tractor and Machinery Certification/Training program has been available for many years to 14 and 15 year old youth wishing to operate tractors and farm machinery for non-related parties (for hire). In addition, Wisconsin Law (Act 455) requires any child under the age of 16 (minimum 12 years of age) who operates a farm tractor or self-propelled implements of husbandry on the highway (public road), when working for immediate family, to be certified as having successfully completed a tractor and machinery operation safety training course. There are no family or relative exemptions. This law (Act 455) took effect July 1, 1997. The legislature considered and accepted lower age limit i.e. 12 years of age. This amendment passed and was signed on April 27, 1998.