National implementation phases
The national implementation of an EN Eurocode part has three phases, the Translation Period, the National Calibration Period and the Coexistence period. The periods are relative to the date where the CEN has delivered the EN Eurocodes Part to the National Standardisation Body (Date of Availability - DAV).
The Eurocodes have already been implemented in the EU/EFTA Member States. But the information below is intended as assistance to other countries that wish to implement the Eurocodes.
The National Standardisation Body (NSB) may start the translation of a Eurocode Part in authorised national languages at the latest at the DAV. The maximum time allowed for translation is 12 months after the DAV.
National calibration period
The Member State should fix the Nationally Determined Parameters within a period of two years after the DAV at maximum. At the end of this period, the national version of an EN Eurocode Part will be published by the NSB, with the National Annex. The Annex will include the Nationally Determined Parameters and reference to Non-Contradictory Complementary Information (NCCI).
At the end of this period, the Member State should have adapted their National Provisions so that the Eurocode Part can be used on its territory. The Member State shall inform the Commission about the result of the tests undertaken using the EN Eurocode Part.
During the coexistence period, which starts at the end of the National Calibration period, the Eurocode Part can be used, just as the former national system can also be used. The coexistence period of a Eurocode Package will last up to a maximum time of three years after the national publication of the last Part of a Package.
The coexistence period of a Package is terminated when the NSBs have withdrawn all conflicting national standards, and the Member States shall make sure that all the Parts of the related Package can be used without ambiguity on their territories by adapting their National Provisions as necessary. Thus all conflicting National Standards in a package should be withdrawn a maximum of 5 years after DAV of the last available standard in the package.
When is a Eurocode Part made available to CEN Members?
Before a Eurocode Part is made available to CEN members for publication the procedure includes two periods:
Examination period. After the final draft prepared by the Project Team is sent to the Subcommittee for progressing to the vote, a period should be allowed for examination of the content of the Eurocode Part. After taking into account any comments generated from this examination, the Subcommittee approves the document to go to formal vote.
CEN process period. After receiving the final draft, CEN organises the formal vote and the ratification, leading to the Date of Availability of the approved European standard.