The study aims to provide comprehensive guidance to policy makers and practitioners in developing countries [Non-Annex I countries to the United Nations Framework Convention on Climate Change (UNFCCC)] for the preparation of national greenhouse gas (GHG) inventories for the waste sector. Though GHG emissions from the waste sector are still comparatively low compared to other sectors, they are continuously rising in developing countries due to changing production and consumption patterns. Experience shows that emissions from this sector can be reduced significantly at relatively low costs.

In the absence of specific guidelines from the UNFCCC on how to develop NAMAs, implementing organizations, donors, and host countries have been formulating NAMAs in a trial-and-error basis. By extracting lessons from these experiences, the previous version of this guidebook introduced basic elements of NAMAs and also different approaches for NAMA-related decisions.