321I.21  Minors under twelve — supervision.
  A person under twelve years of age shall not operate an all-terrain vehicle, including an off-road motorcycle, on a designated riding area or designated riding trail or on ice unless one of the following applies:
  1.  The person is taking a prescribed safety training course and the operation is under the direct supervision of a certified all-terrain vehicle safety instructor.
  2.  The operation is under the direct supervision of a responsible parent or guardian of at least eighteen years of age who is experienced in all-terrain vehicle operation or off-road motorcycle operation and who possesses a valid driver’s license as defined in section 321.1.
2004 Acts, ch 1132, §64; 2007 Acts, ch 141, §40
For applicable scheduled fine, see §805.8B, subsection 2A, paragraph g