From October, cigarette packets on sale here will have to carry warnings in Irish as well as English.
This follows a settlement at the High Court today.
Caitriona Uí Riain, a primary school teacher from Co Cavan, had taken a legal challenge to what she claimed was the State's failure to implement a European directive that the health warnings on tobacco products should be displayed in all the official languages of a State.
The State has agreed to amend the legislation giving effect to the European directive from 1 October, meaning the warnings will be carried in both languages from then.