At a meeting held on 16 September 2002, the Advisory Commission of Cataloguing, the advisory body of the Biblioteca de Catalunya in terms of cataloguing, talked about the need of creating a list of authorities in Catalonia. It was decided to establish a subcommittee to study the technical feasibility of the project and to prepare the requirements and functionality of the list of name and title authorities, taking into account the real needs of the Catalan Library System. The Subcommittee met for the first time on 27 March 2003 and finished the job in October 2003. In the report prepared by them are presented: