A quick guide to notifying accidents and incidents on UK railways

RAIB N3 guide to what accidents and incidents should be notified to us


RAIB N3 quick reference guide

This file may not be suitable for users of assistive technology.

Request an accessible format.
If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email Please tell us what format you need. It will help us if you say what assistive technology you use.


This easy-to-use guide has been designed to help industry when notifying the RAIB of an accident or incident. It has been designed to be printed in colour on an A3-sized sheet, but will reduce to A4.

Published 19 December 2014