Local Agenda 21 is a voluntary action plan developed by the UN to promote sustainable development globally and locally. It defines sustainable development as reforming economic systems to avoid damaging ecological and community systems. The document outlines elements of sustainable development planning including community-based issue analysis, action planning with goals and targets, implementation, monitoring, evaluation and feedback to continually improve plans based on progress. The overall approach aims to broaden municipal planning considerations and engage stakeholders through participatory processes to address sustainability challenges at the local level consistent with Agenda 21.