Approved Driving Instructor (ADI) : A professional driving instructor who is on the Driving Standards Agency's register of Approved Driving Instructors. Only ADI's can charge a fee for driving lessons
Dorset County Council Local Authorities, Education Training and Publicity ETP Glossary, (TheRoad Safety ETP Evaluation Project Working Group), UK 2010. http://www.roadsafetyevaluation.com/glossary/index .html, (Road Trfc and Transp Sfty - Brit) {605}