The document discusses access control for geospatial data using Shibboleth federated identity management. It summarizes work done in the ESDIN project to set up a prototype Shibboleth federation between national mapping agencies. It also describes an OGC interoperability experiment where several software vendors modified their OWS clients to work with Shibboleth single sign-on. The document concludes by discussing potential next steps, such as establishing an INSPIRE Shibboleth federation and holding a workshop at the INSPIRE conference.