Reference document by the European Commission on providing Social Protection across the humanitarian-development Nexus (SPaN) for dissemination to practitioners. It provides an overview of the key information, tools and procedures for implementing and operating social protection programmes in situations of shocks and protracted crises and linking humanitarian aid with social protection systems. It identifies criteria for informing the most appropriate response option, to be embedded in the specificity of its own context, and key enabling features to work together.