GRI Comparison In social responsibility reporting, Finavia uses the indicators laid out in the GRI Guidelines, G3.1. Furthermore, the indicators of the Airport Operators Sector Supplement (AOSS) have been used. At the time of publication of Finavia's report, the AOSS was in the final draft phase. In its future reports, Finavia will make use of the final version of the AOSS, to be published during 2011.