1. EN 50126-1, Railway applications – The specification and demonstration of reliability, availability, maintainability and safety (RAMS). Part 1: Basic requirements and generic process, September 1999
2. CLC/TR 50126-2, Railway applications – The specification and demonstration of reliability, availability, maintainability and safety (RAMS). Part 2: Guide to the application of EN 50126-1 for safety, February 2007
3. IEC 61508, Functional safety of electrical/electronic/programmable electronic safety-related systems, May 2010
4. ISO 26262, Road vehicles - Functional safety, November 2011
5. ISO/IEC Guide 51 - Safety aspects - Guidelines for their inclusion in standards (2014)