CPA is the European version of the CPC (Central Product Classifications of the United Nations) and with a structure based on NACE 2 according to the criterion of economic origin (and thus the definition of the economic activities). Legal basis: Regulation (EC) No 451/2008 of the European Parliament and of the Council of 23 April 2008 establishing a new statistical classification of products by activity (CPA) and repealing Council Regulation (EEC) No 3696/93 (Text with EEA relevance), OJ L 145, 4.6.2008, p. 65 -226. CPA 2008 is maintained by Eurostat and published by the Publications Office of the European Union on the EU Vocabularies website.