299.1B  Failure to attend — driver’s license.
  A person who does not attend a public school, an accredited nonpublic school, competent private instruction in accordance with the provisions of chapter 299A, an alternative school, or adult education classes shall not receive an intermediate or full driver’s license until age eighteen.
94 Acts, ch 1172, §32; 2005 Acts, ch 8, §1

See §321.178