Hawaii Driving Institute is a Driver Education School on the Island of Oʻahu. Classes are available for both new teenage and adult drivers. All HDI Driver Education Instructors are certified by the State of Hawaii Department of Transportation. Teenage participants receive both mandatory 30 hours of classroom instruction as well as 6 hours of behind-the-wheel instruction. Adults have the option of behind-the-wheel only or classroom and behind-the-wheel combo. Students can now register online and instantly reserve a seat by making payment from a computer, tablet or smartphone.