The Papua New Guinea Government submits PNG’s first Biennial Update Report (BUR1) under the United Nations Framework Convention on Climate Change (UNFCCC). The report follows the BUR guidelines for developing countries according to paragraphs 39 to 42 of Decision 2/CP.17 and its Annex III. This first BUR presents an overview of PNG’s national circumstances relevant to climate change, summary results of the inventory of anthropogenic emissions by sources and removals by sinks for years 2000 through to 2015, and also presents information related to identified mitigation actions; constraints and gaps; the financial support received in relation to climate change activities and related financial, technical and capacity needs, including a description of support needed and received; information on national circumstances and institutional arrangements relevant to the preparation of national communications on a continuous basis; and information about the domestic MRV (measurement, reporting and verification). This BUR also includes the Technical Annex referred to in decision 14/CP.19, paragraph 7, containing the results achieved from REDD+ activities by PNG.