Succeeding to the IFLA UBCIM Core Activity, the IFLA UNIMARC Review Group was established in 2003 with the responsibility for the maintenance and development of the Universal MARC format (UNIMARC), originally created by IFLA to facilitate the international exchange of bibliographic data.

The purpose of the UNIMARC Review Group is to coordinate activities aimed at the development, maintenance and promotion of the UNIMARC format, now a set of four formats – Bibliographic, Authorities, Classification and Holdings – and related documentation, through the Permanent UNIMARC Committee (PUC).

For a brief overview of the history, aims and general structure of UNIMARC, see: UNIMARC: an introduction — Understanding the UNIMARC format.