The 1974 Act was repealed by the Electoral (Amendment) Act 1980, which created a new schedule of constituencies first used at the general election for the 22nd Dáil held on 11 June 1981.
The 1974 Act was replaced by the Electoral (Amendment) Act 1980, which implemented new electoral districts first employed at the general election for the 22nd Dáil held on 11 June 1981.