According to OSHA, the Fair Labor Standards Act prohibits anyone under the age of 16 to drive a tractor that has more than 20 power-take-off horsepower. They are also restricted from connecting or disconnecting parts or implements to these tractors.
The United States Department of Labor provides further guidelines for young workers. Those 16 or older may do any work in agriculture, including driving any type of tractor. Those who are 14 to 15 can perform any job that is considered non-hazardous, while those between 12 to 13 years of age may only perform non-hazardous jobs on a farm owned by their parent or with written permission. Anyone under 12 may only work on a farm, if that farm does not have to pay the Federal minimum wage to its workers.