Relatives of people who have gone missing are stepping up calls for the Government to establish an all-Ireland helpline.
They will be staging a candlelit vigil outside the Dáil on Budget day next week.
A national Missing Persons Helpline was shut down in March 2005 when funding was withdrawn.
Campaigners claim the service could be a vital tool for helping trace some of the 2,000 people who go missing in Ireland each year.