成立于1973年。目前包括31个国家（奥地利、比利时、保加利亚、，
塞浦路斯、克罗地亚、捷克共和国、丹麦、爱沙尼亚、芬兰、法国、德国、，
希腊、匈牙利、冰岛、爱尔兰、意大利、拉脱维亚、立陶宛、卢森堡、马耳他、，
荷兰、挪威、葡萄牙、波兰、罗马尼亚、斯洛伐克、斯洛文尼亚、西班牙、，
瑞典、瑞士、英国），并与12家附属公司（阿尔巴尼亚、，
白俄罗斯、格鲁吉亚、波斯尼亚和黑塞哥维那、突尼斯、前南斯拉夫共和国
马其顿、塞尔维亚、利比亚、黑山、土耳其、乌克兰和以色列）
首先将国家文件与CENELEC文件并排保存
然后用协调文件（HD）替换它们。
EN标准和协调文件之间存在差异
（HD）：而一个必须在任何级别上接受，且不得添加任何内容
或者在不同的国家进行修改，二个可以修改
以满足特定的国家要求。
EN标准通常以三种语言发布：英语、法语和
德国的
自1991年起，CENELEC与IEC合作，加快标准的制定
国际标准的制定过程。
CENELEC涉及特定主题，因此迫切需要标准化
必修的。
当独立选举委员会已经开始对特定主题进行研究时
欧洲标准化委员会（CENELEC）可以决定接受或在必要时修改国际标准化委员会已经批准的作品
标准化机构。

set up in 1973. Presently it comprises 31 countries (Austria, Belgium, Bulgaria, Cyprus, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Portugal, Poland, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, United Kingdom) and cooperates with 12 affiliates (Albania, Belarus, Georgia, Bosnia and Herzegovina, Tunisia, Former Yugoslav Republic of Macedonia, Serbia, Libia, Montenegro, Turkey, Ukraine and Israel) which have first maintained the national documents side by side with the CENELEC ones and then replaced them with the Harmonized Documents (HD). There is a difference between EN Standards and Harmonization Documents (HD): while the first ones have to be accepted at any level and without additions or modifications in the different countries, the second ones can be amended to meet particular national requirements. EN Standards are generally issued in three languages: English, French and German. From 1991 CENELEC cooperates with the IEC to accelerate the standards preparation process of International Standards. CENELEC deals with specific subjects, for which standardization is urgently required. When the study of a specific subject has already been started by the IEC, the European standardization body (CENELEC) can decide to accept or, whenever necessary, to amend the works already approved by the International standardization body.