Missouri Defensive Driving School, when taken at a physical location in Missouri, is taught by instructors approved by the Missouri Safety Center.  Online Defensive Driving School, however, is primarily self-paced and self-instructed.   Defensive Driving School students at Driving University work their way through the Missouri Defensive Driving course and complete a series of quizzes/tests after viewing and studying the content provided in each of the sections.  Students have unlimited opportunities to pass this course, as the content is re-introduced and accessible as many times as is needed to ensure successful performance on the assessments.