As part of CLEVER Cities, Tecnalia developed a standardisation component. The project has mapped the needs and demands for standardising NBS within the project as well as across other EU-funded NBS projects and recent publications, which resulted in proposals for standardisation along 5 spheres (NBS Technical Design and Implementation, Policy and Governance, NBS Planning, NBS Financing, and Economic Activities, and Communication and Awareness Raising) and 5 standardisation categories (Terminology, Process, Impact assessment, NBS architecture, and Technological).