21) was a law of Ireland which revised Dáil constituencies in light of the 1991 census.
It took effect on the dissolution of the 27th Dáil on 15 May 1997 and a general election for the 28th Dáil on the revised constituencies took place on 6 June 1997.
It adopted recommendations from an independent Commission chaired by Richard Johnson, judge of the High Court, which delivered its report on 27 April 1995.
[1][2][3] It repealed the Electoral (Amendment) Act 1990, which had defined constituencies since the 1992 general election.
2) Act 1998, which created a new schedule of constituencies first used at the 2002 general election for the 29th Dáil held on 17 May 2002.