Number of fatal injuries notified to all enforcing authorities from 1 April 2005 to 30 September 2006. Enforcing authorites include HSE; local authorities; and the Office of Rail Regulation (ORR). Although ORR has enforced health and safety on railways since 1 April 2006, there is still a requirement under RIDDOR to report certain incidents. RIDDOR (The Reporting of Injuries, Diseases and Dangerous Occurrences Regulations 1995) is the primary determinant as to whether a fatal accident is included in these figures or not. More detail on the technical background can be found in the annual Statistics of Fatal Injuries 2005/06.