Information (EU)

Welcome to the reference document database (RDD)!

The European Union Agency for Railways makes available the Reference Document Database RDD in order to facilitate the access to the rules applied in conjunction with the authorisation of railway vehicles in the Member States of the European Union plus Norway.

For more information about the usage of this tool, the User Manual can be found at: https://rdd.era.europa.eu/rdd/RDD_UserManual_v3.5.1.pdf

The Reference Document:

Part 1 The Application Guide

The Reference Document Application Guide v.3.0 refers to the elements included in the Commission Decision 2011/155/EU, and any other information relevant for the management, understanding and use of the reference document. Version 3.0 is available in all European languages. The list of parameteres published in the Decision 2015/2299/EU was also implemented in RDD.
NB: To support the migration to the new list of parameteres, the existing list of parameteres from Annex III of the "Reference Document Application Guide v2.0-22.07.2013" has been preserved.

Part 2 National Reference Documents (NRDs)

The information on national technical rules and classifications in RDD is currently under verification on a Member State by Member State basis.
Rules in RDD have been validated for the following states:

​Norway Portugal Slovakia ​ Greece
​ ​Finland ​ Sweden Hungary Slovenia
​ ​United Kingdom Denmark Spain Luxembourg
​ Belgium Estonia Latvia Italy
​ Lithuania ​ France Germany Romania
​ Switzerland The Netherlands ​ Austria Bulgaria

For the following Member States, please refer to the PDF version available on ERA website using the links below:

Czech Republic Ireland Poland

Part 3 National Legal Frameworks (NLFs)

The following National Legal Frameworks are published in RDD based on EU LF version 1.7:

Luxembourg Spain Portugal ​ Finland
Denmark Greece France

The following National Legal Frameworks are published in RDD based on EU LF version 1.6.1:

Slovakia United Kingdom Poland

Though registration is not part of the authorisation process, some Member States have chosen to publish their registration flowchart.
To enable the users to consult a registration flowchart of a Member State, a PDF version is supplied under the following links:

Luxembourg Spain Portugal

For the following Member States, please refer to the PDF version (based on EU LF 1.6.1) available on ERA website using the links below:

Austria Belgium Bulgaria Croatia
Czech Republic Estonia​ Germany Hungary
Ireland Italy Latvia Lithuania
Norway Romania Slovenia Sweden
Switzerland











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