The road traffic Acts provide the legislative basis for the determination and provision of traffic signs. In particular, the Acts provide that responsibility for the provision of traffic signs is vested in road authorities and regulations made under the Acts determine the range of signs that fall within the general parameters and categorisation of traffic signs established in the Acts. These include directional traffic signs.
The current policy on directional signs in respect of places in Gaeltacht areas was established through regulations made in 1970. The regulations provided that in an area determined to be a Gaeltacht area, the names of places in such an area must be shown in Irish only. The general policy in relation to the use of Irish and English text is set out in the traffic signs manual, which was published in 1996. A copy of the manual is available in the Oireachtas Library.