Court Supervision for Moving Violations— A driver under age 21 is limited o one court supervision for serious traffic offenses. To obtain court supervision for a traffic violation, a driver under age 21 must attend traffic safety school. A driver under age 18 must appear in court with a parent/legal guardian and also must attend traffic safety school. If receiving court supervision for certain alcohol-relat- ed violations, a driver under age 18 will be denied a full graduated driver’s license or nine months