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          Components
          To help prioritise ours and the industry’s strategic focus we issue chapters, which we update as part of a rolling process, focused on the key risks from across the sector and based on incident data, risk trend analysis and the findings from our inspections, investigations and audits.
- Introduction
 Version 3 - updated January 2017
- Chapter 1 - health and safety management systems
 Version 2 - published January 2017
- Chapter 2 - Industry staff competence and human failure
 Withdrawn July 2025
- Chapter 3 Management of Change
 Withdrawn July 2025
- Chapter 4 - level crossings
 Version 5 - published May 2025
- Chapter 5 - interface system safety
 Version 3 - published December 2017
- Chapter 6a - track and lineside
 Version 2 - updated February 2020
- Chapter 6b - civil engineering assets 
 Version 2 - published July 2025
- Chapter 7 - rolling stock asset management
 Version 4 - updated October 2019
- Chapter 8 - workforce safety programme
 Version 4 - published May 2017
- Chapter 9 - occupational health
 Version 4 - updated 31 March 2020
- Chapter 10 - Europe 
 Withdrawn: content being incorporated into other chapters
- Chapter 11 – Command, control & signalling
 Version 2 - published July 2025
- Chapter 12 - Health and Safety by Design
 Version 2 - published December 2017
- Chapter 13 Leadership and Culture
 Withdrawn July 2025
- Chapter 14 - Tramways
 Version 1 - published April 2019
- Chapter 15: Electrical safety
 Version 1: published May 2025
 
       
     
      