As part of the 'Fit for 55' package, the Commission presented a legislative proposal to review the EU Emissions Trading System (ETS). The aim of the review is to align the EU ETS Directive with the EU target set out in the European Climate Law to reduce net greenhouse gas (GHG) emissions by 55 % by 2030, compared to 1990 levels. To this end, the amount of emission allowances would be reduced, fewer allowances would be allocated for free, and the ETS would be extended to maritime transport. This would reduce emissions in the ETS sectors by 61 % by 2030, compared to 2005. A separate new emissions trading system would be established for fuel distribution for road transport and buildings.