Access to high quality Cultural Heritage data and metadata is the condition for reliable, performant and verifiable research in many arts and humanities fields. One of the core challenges of giving access to Cultural Heritage data is often the lack of connection between local GLAM Institutions, infrastructures and research. The initiative we present in this paper addresses this issue by bringing together several supra-national infrastructures. These infrastructures are currently developing a common online environment that will allow all the relevant actors to connect and improve access to Cultural Heritage data. The “Cultural Heritage Data Reuse Charter” offers a comprehensive framework regarding all aspects relevant to cooperations revolving around access to and reuse of Cultural Heritage data.