Parties to the United Nations Framework Convention on Climate Change are required to submit national communication on a periodic basis as a reporting obligation.  National communications offer countries the opportunity to contribute with technically sound studies and information that can be used for designing mitigation and adaptation measures. The ultimate goal of the National Communications process is to support integration of climate change considerations into relevant social, economic and environmental policies and actions. 

National Communication presents, in compliance with the commitments made, the emission inventory of Greenhouse Gases, the strategies of adjustment undertaken to face the impacts of climate change, the actions taken to mitigate the emissions of Greenhouse Gas and includes updated information regarding the institutional, legal and political development since the submission of the past National Communication. 

Initial National Communication (INC)
Bhutan submitted its Initial National Communication (INC) in 2000 and reported on the emission inventory of greenhouse gases for the base year 1994.

Second National Communication (SNC)
Bhutan's Second National Communication to the UNFCCC was prepared and submitted in 2011 and reports on Bhutan's emission inventory of GHGs for the year 2000. The report also presents Bhutan's vulnerability and adaptation assessment in sectors of Agriculture, Forests and Biodiversity, Water Resources and Human Health. 

Third National Communication (TNC)

Bhutan’s Third National Communication to the UNFCCC prepared through Global Environment Facility’s enabling activity under the umbrella support of the United Nations Environment Program, Nairobi, is an outcome of joint coordinated effort of numerous agencies both governmental and civil society organizations, national thematic working groups, national experts, peer reviewers and individuals. The report presents Bhutan's GHG inventory from 1994 to 2015 and presents potential mitigation options. The report further builds on four sectors in assessing vulnerability and identifying adaptation options and also highlights on support received and needed in implementing climate actions.