The Ljubljana City Library is a member of the international association IFLA (The International Federation of Library Associations and Institutions) and is a member of five professional sections:
Libraries for Children and Young Adults
Library Services to People with Special Needs
Metropolitan Libraries
Public Libraries
Environment, Sustainability and Libraries Section – ENSULIB
In the last of the upper sections the LCL representatives work as members of the leading team in the field of sustainable development and green libraries.