At the time of adoption of the Doha Amendment, the Union and its Member States, together with Croatia and Iceland, stated that the quantified emission limitation and reduction commitments for the Union, its Member States, Croatia and Iceland for the second commitment period under the Kyoto Protocol are based on the understanding that these will be fulfilled jointly in accordance with Article 4 of the Kyoto Protocol.
Tráth a glacadh Leasú Doha, chuir an tAontas agus a Bhallstáit, mar aon leis an gCróit agus an Íoslainn, in iúl go bhfuil an teorannú astaíochta cainníochtaithe agus na gealltanais laghdaithe astaíochtaí don Aontas, dá chuid Ballstát, don Chróit agus don Íoslainn don dara tréimhse gealltanais faoi Phrótacal Kyoto bunaithe ar an tuiscint go gcomhlíonfar iad seo go comhpháirteach i gcomhréir le hAirteagal 4 de Phrótacal Kyoto.