This decision support tool provides overall guidance on establishing national-level REDD+ accounting frameworks within which project or subnational approaches are integrated.  The tool complements information provided in the LEAF Technical Guidance on Development of a REDD+ Reference Level (Walker et al. 2012) and the Winrock/FCPF Decision Support Tool for Developing Reference Levels for REDD+ (Harris et al. 2012) to form a ‘package’ aimed at guiding countries through the REDD+ readiness process.