Thousands of health and community workers will go on strike from October 17th.
The Irish Congress of Trade Unions says it's over Government "failure" to address issues over funding and recruitment.
A ballot for industrial action at the Congress of Trade Unions health group of unions took place after Workplace Relations Commission talks collapsed in July.
Subsequently, Fórsa, the INMO and SIPTU carried out ballots, and all three reported high levels of participation and "overwhelming" support for strike action.
In total, 18 services will be brought to a halt on an indefinite basis.
The list includes employers like the Irish Wheelchair Association and Enable Ireland.
ICTU says although these services are largely state-funded, staff have - in some cases - significantly worse terms than HSE counterparts at similar grades.
Responding, the INMO said the Government cannot continue to "bury it's head" on this issue, while the exchequer enjoys record returns.