Irish Aviation Authority

The Irish Aviation Authority (IAA) (Irish: Údaras Eitlíochta na hÉireann) is a state-owned company in Ireland responsible for the regulation of safety aspects of air travel. It is also responsible for providing Air traffic control services to Ireland's three main airports, namely Dublin, Shannon and Cork. Its head office is in The Times Building in Dublin.

The authority regulates the safety standards of Irish civil aviation and provides air traffic management and aeronautical communications services in Irish controlled airspace. The authority was established under the Irish Aviation Authority Act, 1993. It is not to be confused with the Commission for Aviation Regulation which is responsible for regulation of the economic aspects of air travel in the State.

The authority controls air traffic for all the major international airports in Ireland.

The smaller airports such as Ireland West Airport Knock provide their own approach and aerodrome service.

In recent years, the authority has invested more than €115 million in air traffic control systems . This includes a new air traffic control centre (ATCC) at Ballycasey Cross, Shannon. Built on a Greenfield site, this ATCC became fully operational in February 2004 and replaces the ATC Centre at Shannon Airport which had been in operation since 1966. The new ATC centre houses the Shannon element of the new Air Traffic Management (ATM) system introduced in Shannon and Dublin in 2004.

The authority is also responsible for providing communications in Shanwick airspace, with NATS providing the ATC from Prestwick. Shannon Aeradio, as it is known, is based in Ballygirreen, Newmarket-on-Fergus, County Clare.

In October 2009, it was announced that the regulatory aspects of the IAA's remit would be transferred to the Dublin Transport Authority, later renamed the National Transport Authority.

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