This document proposes an institutional framework to better support Small Island Developing States (SIDS) at both the regional and global levels. It summarizes the current challenges and outlines a three-tiered approach with strengthened mechanisms at each level: [1] autonomous technical arms in each SIDS region, [2] strengthened representation and support for SIDS interests at the global level through AOSIS, and [3] funding to support implementation of commitments to SIDS sustainable development. The goal is a framework that addresses deficiencies and guides discussions at Rio+20 on improving the architecture for SIDS sustainable development.