The system will remain based on trading periods, but the third trading period will last eight years, from 2013 to 2020, as opposed to five years for the second phase from 2008 to 2012.
Süsteemi aluseks on jätkuvalt kauplemisperioodid, kuid kolmas kauplemisperiood kestab kaheksa aastat, 2013–2020, erinevalt teisest etapist, mis kestab viis aastat, 2008–2012.