The System of Environmental-Economic Accounting (SEEA) – Central Framework, was adopted as an international standard by the United Nations Statistical Commission (UNSC) at its forty-third session in 2012. It is the first international statistical standard for environmental-economic accounting. The SEEA Central Framework is a multipurpose conceptual framework for understanding the interactions between the economy and the environment, and for describing stocks and changes in stocks of environmental assets. The SEEA brings statistics on the environment and its relationship to the economy into the core of official statistics. This version of the SEEA is an outcome of much path-breaking work on extending and refining concepts for the measurement of the interaction between the economy and the environment.