Ciarán Cannon (Galway East, Fine Gael) | Oireachtas source

VTOS places are alocated to education and training boards ,ETBs, and further distribution of these places to areas under their remit is a matter for each ETB.

The movement of VTOS places from Tallaght to Balbriggan was a decision taken by Dublin and Dún Laoghaire ETB. I understand that this followed the amalgamation of the former Dublin and Dún Laoghaire vocational educational committees and the merger of the former FÁS services, which led to a review of the provision of its adult education services.

See this speech in context