Abstract
It was determined at the COP18 of UNFCCC in 2012 to start a new framework of post-2020 climate regime. The participation of developing countries is essential to establish the new regime. Therefore, the MRV (measurable, reportable,verifiable) scheme has been introduced to ensure great reductions in GHG emission from developing countries. Although the MRV scheme has been discussed since 2007, the practical model of MRV scheme is not specified yet. Here we aim to discuss the application of P2M (3S model) to constructing a practical model of MRV scheme which has the same structure (PDCA-cycle) as the ISO certification system, which is prevailing through the world using private sector resources. The new model of MRV (ISO-MRV) scheme will be accepted easily by many developing countries.