DEFINITION: This ABB is a Business Agnostic European Legal Act which lays down rules to the proper functioning of the internal market by ensuring the free movement of information society services between the Member States. Source: https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&cad=rja&uact=8&ved=2ahUKEwjC-dSg3tH1AhWOS_EDHZ10CI8QFnoECAoQAQ&url=https%3A%2F%2Feur-lex.europa.eu%2Flegal-content%2FEN%2FALL%2F%3Furi%3Dcelex%253A32000L0031&usg=AOvVaw3ByETWV1HKT-o8bac5Inx0 INTEROPERABILITY SALIENCY: IoP Dimension: Governance IoP The Binding Instrument ABB is relevant for interoperability as, by being a specialisation of Legal Act, it makes mandatory the implementation of the policy (and therefore the underlying interoperability implications).