DESCRIPTION: A shared legal framework is formed by [re]usable legal resources, with convergence power, in relation to public policy goals attainment, given by their legally binding nature, across the levels of a public administration (central, regional, local) towards the achievement of the public policy goals, enabling : i) structural interoperability by legal resources supporting reusing and/or sharing legislation (i.e. legislation catalogue enabling provisioning/consuming legal texts cross public administrations and cross borders); ii) behavioural interoperability by legal resources supporting exchanging capabilities of data, information or knowledge with internal/external peers (i.e. Legislation on Knowledge, Information and data exchange enabling that data/information/knowledge be provisioned/consumed cross public administrations and cross borders ); and iii) governance interoperability by legislation supporting the collaboration with internal/external peers exchanging data, information or knowledge (i.e. Legal Interoperability Agreements on legal terms assuring juridical certainty enabling agreed legal terms/conditions for sharing, reuse and exchange of data/information/knowledge cross public administrations and cross borders). INTEROPERABILITY SALIENCY: IoP dimensions: Structural IoP, Behavioral IoP, Governance IoP This ABB is a key interoperability enabler because it supports to achieve legal interoperability with public policy goals convergence value by all in all enabling i) sharing/provisioning/reusing/consumption of legislation on digital public services, ii) the exchange of data, information, and knowledge between digital public services, and iii) collaboration between digital public services