This document includes the elements of National Forest Monitoring System (NFMS) related to REDD+ (Reducing Emissions from Deforestation and forest Degradation) under the United Nations Framework Convention on Climate Change (UNFCCC), while describing the UN-REDD Programme's approach to Monitoring and Measurement, Reporting and Verification (M&MRV). The publication addresses elements of relevant texts of the UNFCCC and the methodological recommendations of the Intergovernmental Panel on Climate Change (IPCC).