In order to avoid duplication between standardisation at international and European level, to the benefit of standard contributors and users, as well as to improve the effectiveness of standardisation at European and international level, CEN and CENELEC have signed agreements with their respective international partners, the International Organisation for Standardisation (ISO) and the International Electrotechnical Commission (IEC). define the rules of cooperation. The Vienna Agreement, signed in 1991 between CEN and ISO, recognises the primacy of international standards and aims to ensure that standards are recognised simultaneously at international and European level by improving the exchange of information and mutual representation at meetings. Either CEN or ISO take the lead in the development of a new standard and the relevant documents must be submitted for simultaneous approval. ISO members can thus influence the content of the CEN standard and vice versa. Around 31% of CEN standards are developed under the Vienna Agreement. CENELEC maintains close collaboration with its international counterpart, the International Electrotechnical Commission (IEC). In order to facilitate the search for consensus between European and international standardization activities in the electricity sector, CENELEC and the IEC formalized the framework of their cooperation by signing in 1996 an “agreement on joint planning of new work and parallel consultations”, known as the Dresden Agreement. In order to avoid duplication between standardization at international and European level, to increase the effectiveness of standardization at European and international level, CEN and CENELEC have signed agreements with their respective international partners, the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC). define the rules of cooperation. The main objective of CENELEC-IEC cooperation is to avoid duplication and reduce the time it take to develop standards. Therefore, new draft electrical standards are planned jointly between CENELEC and IEC and most are, if possible, implemented internationally.
This means that CENELEC will first offer a New Work Item (NWI) to its international counterpart. In case of adoption, CENELEC will cease to work at the NWI. If the IEC refuses, CENELEC will work on the evolution of the content of the standard, keep the IEC informed and give the IEC the opportunity to express itself during the public review phase. CENELEC and IEC vote in parallel (both organizations vote simultaneously) during the standardization process. If the result of the parallel vote is positive, CENELEC will ratify the European standard and IEC will publish the international standard. The Frankfurt Agreement After 20 years of fruitful partnership that has led to very high technical harmonisation (almost 80% of CENELEC standards are identical or based on IEC publications), CENELEC and IEC confirmed their long-standing collaboration on 17 October 2016 with the signing of the Frankfurt Agreement. Based on the experience of both partners, this new agreement preserves the spirit and approach conveyed by the Dresden Agreement, in particular CENELEC`s strategic commitment to supporting the primacy of international standardisation. . .