Qualifictions: A.D.I. = Approved Driving Instructor 2003 DIAmond Special Test 2005 DIAmond Elite Test 2017 A very high standard of driving ability, skill and concentration are required to pass the DIAmond Special & Elite Test which is currently the most stringent measure of driving ability available to drivers in the UK. Qualified Fleet Driver Trainer Customer Services NVQ Trainer for Gloucestershire Road Safety Partnership Train the Trainer - Completion of TriCoaching Course for training ADI's. I recently achieved a Grade A on my Driving Instructor's Check Test which is only awarded to a small percentage of Instructors who can demonstrate an exceptionally high standard of teaching/coaching.