UN Statistical Commission :: UN Statistics Division [to 5 December 2015]
http://unstats.un.org/unsd/default.htm
http://unstats.un.org/unsd/statcom/commission.htm
http://unstats.un.org/sdgs/

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Open consultation on proposed global SDG indicators coded as ‘grey’ to be launched on 9 December 2015
An open consultation will take place on the proposed SDG Indicators that currently coded as ‘grey’, indicating that further discussion on them is still needed. The consultation will be open from Wednesday, 9 December to Tuesday, 15 December to both observers (non-IAEG Member States and representatives of regional commissions and regional and international agencies) and other stakeholders (civil society, academia and private sector) for technical comments.