The Urban Nexus project started out as a bottom-up initiative operating primarily at the city level. GIZ and ICLEI provide customized technical assistance to cities depending on the thematic focus of the cities’ nexus pilot projects. However, national, regional and provincial-level legal, regulatory, and policy frameworks are crucial determinants for local decision-making with regard to the nexus sectors. As such, ICLEI is facilitating national – regional – local dialogues as a means to clarify issues impeding the implementation of proposed nexus pilot projects. National-local dialogues help bridge the gap across levels of government particularly in the areas of water including wastewater, energy, and land use as well as cascading finance to the local level. Iteration and continued follow-ups between the two levels of government further strengthens vertical integration. ICLEI also utilizes its various international events to further promote the nexus approach including cross-sectoral cooperation within local governments and across levels of government.