A crucial aspect of the EUDAT activity and its future is the infrastructure’s openness to additional communities. Within this deliverable we discuss the first steps in the development of a Community Integration Toolkit (CIT) which will be a key component in aiding new communities to prepare to participate in the data infrastructure. We review what other infrastructures such as PRACE and EGI have done to structure involvement with their communities, in particular the operational level agreements that they have with their service providers and the service level agreements that they have with their users. We present a brief summary of the Data Seal of Approval and the Security for Collaborating Infrastructure that seek to provide a quality framework for secure access to data repositories and services. We then suggest what needs to be included in EUDAT Agreements that are currently being drafted and will be reviewed by user and service provider communities.