Members of the Civil and Public Services Union and the Public Service Executive Union have said they will not be operating public counters in the Passport Service from 1pm tomorrow.
Passport offices in Dublin, Cork, and Balbriggan will be closed to the public as a result of the action.
The Passport Service has apologised to customers for the disruption and said updates will be published on their website www.passport.ie.
Last Tuesday the passport office in Molesworth Street, Dublin 2 was forced to close due to extensive flooding.