Amendments/Revisions to European Standards

This page specifies the actions required to consider any modification to, addition to or deletion of specific parts of a European Standard (EN) by processing an amendment or a revision (including the addition of Annex Z of European Standards for citation in the Official Journal), in line with the agreed time frames.


The following process applies to the CEN Members, the CEN  Technical Committees (TC) and the TC Secretaries and the CEN-CENELEC Management Centre (CCMC). 

1.1 The CEN Members, the TC, the EC, the EFTA Secretariat, the international or European trade organizations, professional, technical or scientific organizations send a request for an amendment to an existing EN to the appropriate TC via the TC Secretary.

 The TC, being responsible for the maintenance of the EN, decides if the EN is to be amended or revised. If an amendment or a revision is deemed necessary, the TC takes a Decision to create a corresponding NWI.

NOTE: Amendments can only be made for ENs that are less than 4 years old. Older ENs require a revision.

1.3 The TC prepares the draft text and submits it to 'CEN Enquiry'.


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