rail-signpost

Signpost (not a knowledge pack) for the railway RAMS and signalling assurance standards: EN 50126-1:2017 and EN 50126-2:2017 (both with A1:2024) for the RAMS process, EN 50128:2011 (A1:2020, A2:2020)

SKILL.md

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Railway RAMS and Signalling Assurance Standards: Signpost (pointers only)

This is a signpost, not a knowledge pack. It carries no standards-body content: no reproduced clauses, no normative text, no synthesised summaries of the standards. EN 50126, EN 50128, EN 50129, and EN 50159 are paywalled with no redistribution grant (Excluded under this repo's docs/SOURCE-VETTING.md), so they cannot be reconstituted into a redistributable pack. What this skill does: tell you which document you want, what it is for, who owns it, whether a free copy exists, and where to get the authentic one.

When to use

You are working on railway RAMS, railway control software, or a signalling electronic safety case and need to identify or cite the governing document: which standard covers the RAMS process, which covers software, which covers safety-related electronic systems for signalling, and which free text covers the risk-process need. Paywalled rows route you to the owner. Free rows route you to the regulation or the ORR guidance. No row names an in-repo pack.

Prerequisites: none, plain Markdown.

How to use

Find your document below. The Status column says whether it can be packaged:

  • Excluded: paywalled, no redistribution grant; buy from the owner. Cannot be packaged here.
  • Open: free to obtain. No row in this signpost names an in-repo pack. Railway RAMS, railway software, and signalling electronic safety cases are not packaged in this catalogue.

CENELEC editions were confirmed on the EVS catalogue on 2026-10-14. No 2025 edition of EN 50128 was found. EN 50129:2018 is withdrawn on EVS from 2026-06-02; EN 50129:2026 is the incoming edition. Do not quote a date this file does not print.

RAMS process (EN 50126)

Designation Title Edition Owner Status URL
EN 50126-1:2017 Railway applications - The Specification and Demonstration of Reliability, Availability, Maintainability and Safety (RAMS) - Part 1: Generic RAMS process. Amendment A1:2024 (EVS valid from 2024-12-02): https://www.evs.ee/en/evs-en-50126-1-2017-a1-2024 2017; A1:2024 CENELEC (catalogue: EVS) Excluded https://www.evs.ee/en/evs-en-50126-1-2017
EN 50126-2:2017 Railway Applications - The Specification and Demonstration of Reliability, Availability, Maintainability and Safety (RAMS) - Part 2: Systems Approach to Safety. Amendment A1:2024 (EVS valid from 2024-12-16): https://www.evs.ee/en/evs-en-50126-2-2017-a1-2024 2017; A1:2024 CENELEC (catalogue: EVS) Excluded https://www.evs.ee/en/evs-en-50126-2-2017
BS EN 50126-1:2017 UK adoption of EN 50126-1:2017, the generic RAMS process. BSI Knowledge product page, paywalled. 2017-11-30 BSI Excluded https://knowledge.bsigroup.com/products/railway-applications-the-specification-and-demonstration-of-reliability-availability-maintainability-and-safety-rams-generic-rams-process
BS EN 50126-2:2017 UK adoption of EN 50126-2:2017, systems approach to safety. BSI Knowledge product page, paywalled. 2017-11-30 BSI Excluded https://knowledge.bsigroup.com/products/railway-applications-the-specification-and-demonstration-of-reliability-availability-maintainability-and-safety-rams-systems-approach-to-safety

Software for railway control and protection (EN 50128)

Designation Title Edition Owner Status URL
EN 50128:2011 Railway applications - Communications, signalling and processing systems - Software for railway control and protection systems. No 2025 edition was found on the EVS catalogue on 2026-10-14. Amendment A1:2020: https://www.evs.ee/en/evs-en-50128-2011-a1-2020. Amendment A2:2020: https://www.evs.ee/en/evs-en-50128-2011-a2-2020 2011; A1:2020; A2:2020 CENELEC (catalogue: EVS) Excluded https://www.evs.ee/en/evs-en-50128-2011
IEC 62279:2015 Software for railway control and protection systems. IEC dual of the software standard, catalogue-present on EVS. Optional BSI software-path page, paywalled: https://knowledge.bsigroup.com/products/railway-applications-communication-signalling-and-processing-systems-software-for-railway-control-and-protection-systems 2015 IEC (catalogue: EVS) Excluded https://www.evs.ee/en/iec-62279-2015

Safety-related electronic systems for signalling (EN 50129)

Designation Title Edition Owner Status URL
EN 50129:2018 Railway applications - Communication, signalling and processing systems - Safety related electronic systems for signalling. The scope text references concepts defined in EN 50126-1:2017. Corrigendum AC:2019-04: https://www.evs.ee/en/evs-en-50129-2018-ac-2019. Withdrawn on EVS from 2026-06-02; existing contracts still cite this edition. 2018; AC:2019-04; withdrawn on EVS from 2026-06-02 CENELEC (catalogue: EVS) Excluded https://www.evs.ee/en/evs-en-50129-2018
EN 50129:2026 Railway Application - Communication, signalling and processing system - Safety related electronic systems for signalling. Incoming edition, EVS valid from 2026-06-02. 2026 (EVS valid from 2026-06-02) CENELEC (catalogue: EVS) Excluded https://www.evs.ee/en/evs-en-50129-2026
BS EN 50129:2018 UK adoption of EN 50129:2018, safety related electronic systems for signalling. BSI Knowledge product page, paywalled. 2019-05-31 BSI Excluded https://knowledge.bsigroup.com/products/railway-applications-communication-signalling-and-processing-systems-safety-related-electronic-systems-for-signalling-1
IEC 62425:2025 Safety-related electronic systems for railway signalling. IEC dual of the signalling electronics standard, EVS valid from 2025-05-05. The 2007 edition was withdrawn on EVS on 2025-05-05: https://www.evs.ee/en/iec-62425-2007 2025 (EVS valid from 2025-05-05); 2007 withdrawn 2025-05-05 IEC (catalogue: EVS) Excluded https://www.evs.ee/en/iec-62425-2025

Not the communication standard

Designation Title Edition Owner Status URL
EN 50159:2010 Safety-related communication in transmission systems. This is the communication standard. It is not EN 50129. 2010 CENELEC (catalogue: EVS) Excluded https://www.evs.ee/en/evs-en-50159-2010

Free CSM and ORR paths

Designation Title Edition Owner Status URL
Regulation (EU) No 402/2013 Commission Implementing Regulation (EU) No 402/2013 of 30 April 2013 on the common safety method for risk evaluation and assessment, repealing Regulation (EC) No 352/2009: the free analogue for the EN 50126 risk-process need, and not an EN lifecycle or SIL table. CELEX: https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32013R0402 2013-04-30; amended by 2015/1136 European Commission Open https://www.legislation.gov.uk/eur/2013/402
Regulation (EU) 2015/1136 Commission Implementing Regulation (EU) 2015/1136 of 13 July 2015 amends 402/2013 and introduced harmonised design targets (ORR); it is not an EN substitute. CELEX: https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32015R1136 2015-07-13 European Commission Open https://www.legislation.gov.uk/eur/2015/1136
Regulation (EU) No 1078/2012 Commission Regulation (EU) No 1078/2012 of 16 November 2012 on the common safety method for monitoring; a free process companion, not an EN substitute. CELEX: https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32012R1078 2012-11-16 European Commission Open https://www.legislation.gov.uk/eur/2012/1078
Regulation (EU) 2018/761 Commission Delegated Regulation (EU) 2018/761 of 16 February 2018 establishing common safety methods for supervision by national safety authorities; a free process companion, not an EN substitute. CELEX: https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32018R0761 2018-02-16 European Commission Open https://www.legislation.gov.uk/eur/2018/761
ORR CSM REA guidance ORR guidance on the Common Safety Method for Risk Evaluation and Assessment (PDF, 16 December 2024): UK framing of the CSM REA method, not an EN lifecycle or SIL table. 2024-12-16 ORR Open https://www.orr.gov.uk/sites/default/files/2024-12/common-safety-method-for-risk-evaluation-and-assessment.pdf
ORR European-derived railway safety legislation ORR page listing the European-derived railway safety legislation, including the CSM family and the 2015/1136 design targets; a framing page, not an EN substitute. page current as fetched 2026-10-14 ORR Open https://www.orr.gov.uk/guidance-compliance/rail/health-safety/laws/european-railway-safety-legislation
Regulation (EU) No 1077/2012 Commission Regulation (EU) No 1077/2012 of 16 November 2012 on the common safety method for supervision by national safety authorities (legacy); a companion, not an EN substitute. CELEX: https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32012R1077 2012-11-16 European Commission Open https://www.legislation.gov.uk/eur/2012/1077
Regulation (EU) 2018/762 Commission Delegated Regulation (EU) 2018/762, the common safety method on safety management system requirements; a companion, not an EN substitute. CELEX: https://eur-lex.europa.eu/legal-content/en/TXT/?uri=CELEX%3A32018R0762 2018 European Commission Open https://www.legislation.gov.uk/eur/2018/762
Regulation (EU) No 1158/2010 Commission Regulation (EU) No 1158/2010, the common safety method for assessing conformity with the requirements for railway safety certificates; a companion, not an EN substitute. CELEX: https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A32010R1158 2010 European Commission Open https://www.legislation.gov.uk/eur/2010/1158
Regulation (EU) No 1169/2010 Commission Regulation (EU) No 1169/2010, the common safety method for assessing conformity with the requirements for railway safety authorisation; a companion, not an EN substitute. 2010 European Commission Open https://www.legislation.gov.uk/eur/2010/1169
ORR Guide to ROGS ORR Guide to the Railways and Other Guided Transport Systems (Safety) Regulations (PDF, July 2026 path): UK regulatory framing of how the CSMs sit under ROGS, not an EN substitute. 2026-07 ORR Open https://www.orr.gov.uk/sites/default/files/2026-07/guide-to-rogs-july-2026.pdf
ORR RM3 ORR Risk Management Maturity Model guidance landing page: a maturity framing tool, not an EN substitute. n/a ORR Open https://www.orr.gov.uk/guidance-compliance/rail/health-safety/strategy/rm3

RSSB catalogue, summaries only

Designation Title Edition Owner Status URL
RSSB standards catalogue Browseable catalogue of RIS, Rule Book modules, and guidance notes. Item pages carry a public summary of changes; full RIS/RGN PDFs sit behind login. Types explainer: https://www.rssb.co.uk/standards/types-of-standards-and-how-they-work. No specific free GE/GN alignment guide for EN 50126 was confirmed, so none is named here. catalogue, not a single edition RSSB Open: item-page summaries only; full RIS/RGN PDFs require login https://www.rssb.co.uk/standards-catalogue
RSSB standards hub RSSB standards landing page, an explainer of the standards system rather than standard text. n/a RSSB Open: explainer, not standard text https://www.rssb.co.uk/standards

Scope & Limits

  • No reproduced standards text. Rows carry designation, title, edition, owner, status, and URL only.
  • No in-repo pack is the open path. Do not send a reader to mil-std-882, faa-8110-49, or nhtsa-vehicle as a railway equivalent.
  • EN 50129 is safety-related electronic systems for signalling. EN 50159 is the communication standard.
  • EN 50128 has no 2025 edition in this signpost. EN 50129 lists 2018 and 2026.
  • CSM and ORR rows are the free risk-process and UK regulatory framing. They do not replace EN lifecycle, software, or safety-case content.
  • RSSB full standards are not free. Catalogue summaries are.
  • The IEC dual-number part designations for RAMS were not confirmed and are not cited.

Signpost content is original JG Systems Consulting Ltd. work, MIT licensed. Trademarks and standard designations are named for identification only.