Public sector workers belonging to the country's largest union, SIPTU, have voted to back the Croke Park Pay and Reform Deal.
Over 65% of those who voted accepted the agreement.
The union's president, Jack O'Connor, said SIPTU's members in the public service have decided to go with a medium term strategy which protects their interests in the matters of pay, job security and pensions while providing a framework for the reinstatement of agreed rates over time.
He said the responsibility would now pass to those at the top of society who have contributed little or nothing to the resolution of the country's economic problems, while working people and those who depend most of public services had carried the lion's share of the burden.
Earlier, the deal was also accepted by the IMPACT union. 77% of IMPACT's 60,000 members voted in favour of the deal, with 23% against.
The Croke Park agreement is now set to be ratified by the Public Services Committee of Congress on Tuesday.
