Water has been identified by the United Nations Statistics Division (UNSD) as a priority area for implementation of the SEEA. SEEA-Water, a SEEA 'sub-system', provides compilers and analysts with agreed concepts, definitions, classifications, tables, and accounts for water and water-related emission accounts. The United Nations Statistical Commission adopted Part I of SEEA-Water as an interim international statistical standard at its 38th session in 2007.