This manual provides an overall review of data, models, techniques and accounting methods that should, or could, be part of a Measurement, Reporting and Verification (MRV) program for reducing emissions from deforestation and forest degradation (REDD+). This is in the context of REDD+ as a mechanism within the United Nations Framework Convention on Climate Change (UNFCCC). This manual is intended to inform policymakers, as well as implementers of MRV at the national level, about REDD+.