During last months, Worck Package 3 (Sustainability and Long-term Governance) had work on the sustainability assessment of building blocks and their governance structure. The effort resulted in three deliverables so far:

• D 3.1 - Guidelines to the assessment the sustainability and maturity of building blocks
• D 3.4 - Preliminary proposal for a governance body
• Preliminary proposal for long-term sustainability within the CEF

The first deliverable has presented a robust methodology for assessing building blocks in place, basin on the accepted CAMMS methodology - a pilot sustainability assessment on e-Signatures, that has been succesfully carried out. Another important task was to propose the governance structure of building blocks. The opinions of a Large-Scale Pilot on a governance body have been brought together in second deliverable through questionnaire and face-to-face meetings. Some commonalities between different LSPs and domains have been noticed: central role of public administration, clear definitions and semantics at EU level, stakeholder involvement, market take-up model and common standarisation. Further validation has been carried out in third deliverable. This deliverable indicates a strong need for a governance structure. Experts in e-SENS have underlined, that public administration must play the central role in future governance structure and the decision-making process. Regarding the European level, the EU/EC experts consider, that it should have a coordinating role and be decisive in case the subsidiary principle permits it. Experts in e-SENS commonly agree, that Members States should play a very central role in the future governance structure. Cooperation at cross-border level is necessary and Member States should be devisive in decision making process. The deliverable also adresses the role of standarsation bodies, role of the high-level building blocks vs more domain-oriented building blocks.