This document reviews laws and institutional frameworks that safeguard Principle 10 of the Rio Declaration on Environment and Development of 1992, which refers to access to information, participation and justice in environmental matters, in the 33 countries of Lat tin America and the Caribbean. In addition to the information that was collected, a questionnaire on implementation of Principle 10 at the national level was circulated in the first quarter of 2013, which was completed by 16 countries in the region and 10 civil society organizations.