Criteria used as the basis of reporting The criteria used as the basis of reporting include the GRI Standards published by the Global Reporting Initiative (GRI), the ICMM Sustainable Development Framework published by the International Council on Mining and Metals (ICMM), the GHG Protocol published by the WRI/WBCSD, and the basis of preparation disclosed in the Sustainability Report of BHP Billiton Limited and BHP Billiton Plc (collectively BHP).