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ERA Railway Terminology visual v0 featured

ERA Railway Terminology Collection

Last updated: 12 March 2026

The ERA Railway Terminology Collection gathers terms and abbreviations that are contained in the EU legal framework for railway, technical documents produced by bodies which are engaged in the development of important evolution in the railway system and other relevant glossaries.

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The file you will get by clicking the "Download the full Terminology" button below is in CSV format. To convert it to a readable Excel file:

1. Download the CSV file
2. Open a blank Excel sheet
3. Go to Data → Get Data from CSV → select the CSV file you just downloaded
4. The Excel file will be generated (without any encoding issues)

Starting with "C" (756)

ERA Railway Terminology Collection is a consultation tool, developed to support the sharing of information through the actors involved in running the Single European Railway Area (SERA). The responsibility for the correctness, completeness, accuracy, or reliability of the information in ERA RTC lays upon the authors of the definitions, as they derive from reference documents having their own preparation and approval flow. Users cannot call ERA liable for the use they make of the content. Please consider that when the collection is exported (.csv) and then printed or converted, it becomes uncontrolled.
Term Context Document Type Origin document

CEPT

EU Policy

EU Technical Document

Technical document from the Publications Office of the European Union - ‘Style guide’ Coordination Interinstitutional Style Guide - version on 19.04.2022

CEPT

International Standard

EU Technical Document

CEN CENELEC ABBRAVIATION ACRONYM 2025

CER

RNE Glossary

Glossary

RNE Glossary - NS_CID_Glossary_2025

CER

Control-Command and Signalling

Application Guide

GUI/CCS TSI/2023 Version 1.0 17/06/2024 Guide for the application of the CCS TSI 2023/1695 In accordance with Article 19(3) of Regulation (EU) 2016/796 of the European Parliament and of the Council of 11 May 2016

CER

Withdrawn

Application Guide

TAP TSI Annex B.54 Indirect Fulfilment application_guide - version 1.0 of 06/12/2013

Latest release

CER

ERTMS

Technical Document

ERTMS/ETCS - Glossary of Terms and Abbreviations - version : 4.0.0 - date 05/07/2023

CERD

EU Policy

EU Technical Document

Technical document from the Publications Office of the European Union - ‘Style guide’ Coordination Interinstitutional Style Guide - version on 19.04.2022

CERN

EU Policy

EU Technical Document

Technical document from the Publications Office of the European Union - ‘Style guide’ Coordination Interinstitutional Style Guide - version on 19.04.2022

CERT-EU

EU Policy

Decision

Commission Decision (EU, Euratom) 2017/46 of 10 January 2017 on the security of communication and information systems in the European Commission

Certificate

Withdrawn

Application Guide

TAP TSI Annex B.54 Indirect Fulfilment application_guide - version 1.0 of 06/12/2013

Latest release

Certificate

SMS Safety Culture Human and Organisational Factor

Directive

Directive 2007/59/EC of the European Parliament and of the Council of 23 October 2007 on the certification of train drivers operating locomotives and trains on the railway system in the Community

Certificate for electronic seal

EU Policy

Regulation

Regulation (EU) No 910/2014 of the European Parliament and of the Council of 23 July 2014 on electronic identification and trust services for electronic transactions in the internal market and repealing Directive 1999/93/EC

Certificate for electronic signature

EU Policy

Regulation

Regulation (EU) No 910/2014 of the European Parliament and of the Council of 23 July 2014 on electronic identification and trust services for electronic transactions in the internal market and repealing Directive 1999/93/EC

Certificate for website authentication

EU Policy

Regulation

Regulation (EU) No 910/2014 of the European Parliament and of the Council of 23 July 2014 on electronic identification and trust services for electronic transactions in the internal market and repealing Directive 1999/93/EC

Certificate of Operation

International Relations

COTIF Document

Uniform Rules concerning the Technical Admission of Railway Material used in International Traffic (ATMF - Appendix G to the Convention) version of 01.11.2023

Certificate of Verification

International Relations

COTIF Document

Uniform Rules concerning the Technical Admission of Railway Material used in International Traffic (ATMF - Appendix G to the Convention) version of 01.11.2023

Certificate of verification

Single Market Mutual Recognition Conformity Assessment

Regulation

Commission Implementing Regulation (EU) 2019/250 of 12 February 2019 on the templates for EC declarations and certificates for railway interoperability constituents and subsystems, on the model of declaration of conformity to an authorised railway vehicle type and on the EC verification procedures for subsystems in accordance with Directive (EU) 2016/797 of the European Parliament and of the Council and repealing Commission Regulation (EU) No 201/2011

Certification audit

International Standard

ISO

ISO/IEC 17021-1:2015(en) Conformity assessment — Requirements for bodies providing audit and certification of management systems — Part 1: Requirements

Certification body

International Standard

ISO

ISO/IEC 17065:2012(en) Conformity assessment — Requirements for bodies certifying products, processes and services

Certification body

Entity in Charge of Maintenance

Regulation

Commission Implementing Regulation (EU) 2019/779 of 16 May 2019 laying down detailed provisions on a system of certification of entities in charge of maintenance of vehicles pursuant to Directive (EU) 2016/798 of the European Parliament and of the Council and repealing Commission Regulation (EU) No 445/2011