DIA - Driving Instructors Association. DAM - DIAmond Advanced Motorists MDRC-Master Drivers And Riders club DSA - CBT 1 Instructor (Driving Standards Agency  DSA - DAS Instructor (Driving Standards Agency) DSA - Motorcycle Instructor Trainer (Driving Standards Agency) DSA -Driving Standards Agency - Post-test Register DSA-Driving Standards Agency – Enhanced Rider Post Test Trainer DIAmond – ‘Advanced Motorcycle Rider  (Driving Instructors Association) DIAmond - Advanced Instructor (Driving Instructors Association) DIAmond Advanced Instructor Trainer (Driving Instructors Association) DIAmond Advanced EXAMINER Suzuki Approved Motorcycle Instructor/school FBos – First Bike on Scene (Lancashire Ambulance and Paramedic Service) STHCOC         -     St Helens Chamber of Commerce