The Green Party has voted in favour of the new programme for government, ratifying the historic coalition with Fianna Fáil and Fine Gael.
The result comes after both Fianna Fáil and Fine Gael members earlier backed the three-party coalition deal.
Green Party members secured the required two thirds majority, with 76 per cent favouring the deal.
The Fianna Fáil result saw 74 per cent of members back the deal
Fine Gael members also endorsed the new programme for government, with 80 per cent in favour of the deal.
The ratification by all three parties paves the way for Fianna Fáil leader Micheál Martin to officially become Taoiseach for the first time.