The publication of the CCPA-96 is organised into four parts. The first part includes the presentation, the introduction and the decree approving the 1996 Catalan Classification of Products by Activities (CCPA-96). The second part first summarises the historical and conceptual framework in which economic classifications are developed for statistical purposes, with specific focus on the classifications of products. It also includes a list of the most significant differences with the Spanish classification system (CNPA-96). The third part contains the 1996 Catalan Classification of Products by Activities (CCPA-96) and explanatory notes of the codes requiring explanation. The fourth part includes the annexes where the terminological criteria and bibliographic materials used are set out.