This strategy features in the framework of Agenda 21 as formulated at UNCED (Rio de Janeiro, 1992), now coordinated by the United Nations Commission on Sustainable Development and implemented through national and local authorities. Agenda 21 recommends that industry should integrate cleaner production principles and case examples into training programmes and establish demonstration projects/networks by sector/country. It adds that governments, international organizations and industry should also encourage the launching of demonstration projects at the local level to develop "success stories" in cleaner production.