The municipality of Itaboraí began the process of reviewing its Municipal Master Plan. EMBYÁ undertook the drafting of the Environment chapter. The review process involved participatory workshops with all the districts of the municipality, collecting primary and secondary data, to then draw up the guidelines. Environmental topics were raised, such as altimetry, permanent preservation areas, threats to phytophysiognomies, agricultural suitability, aquifers, priority areas for conservation, land cover, slope, hydrology, past ecosystems, floods, mining, pedology, environmental risks, risk of pollutant concentration, sensitivity to erosion, hilltops, and others.