This technical report covers the technical analysis of the technical annex that was submitted on a voluntary basis by Brazil through its first biennial update report, in accordance with decision 14/CP.19. The technical annex covers data and information on the activity “reducing emissions from deforestation”, which is one of the activities included in decision 1/CP.16, paragraph 70, and the same subnational territorial forest area as the assessed forest reference emission level proposed by Brazil for the Amazonia biome, with the aim of transitioning to national implementation in the future.