The UNEP Governing Council adopted the Bali Guidelines in 2010 as a tool to assist countries in filling gaps in national and sub-national legislation in order to facilitate broad access to information, public participation and access to justice in environmental matters. In 2012 UNEP and UNITAR joined hands to promote the Bali Guidelines, including through a project to develop a Guide to the Guidelines implemented by the World Resource Institute (WRI). Drafted with assistance from a global Advisory Group, the Guide is intended to be a practical tool for the use of governments, major groups and stakeholders, legal professionals, implementing authorities and others engaged in the application of Rio Principle 10.