There will be no Parliamentary boundary changes before the next set of Westminster elections in 2015 after the plans were blocked by Liberal Democrat peers in the House of Lords.
The plans had received a mixed response across Wales where they would have seen a reduction in the number of MPs from 40 to 30. In Rhondda Cynon Taff proposals to split the Cynon Valley constituency in particular were met with substantial resistance, although the latest report for the Commission suggested that changes would have gone ahead regardless.
It has been suggested that the Bill could go back to the Commons to try and overturn the decision, but Liberal Democrat leader Nick Clegg has said that the Party's MPS will vote against it. The coalition agreement to press ahead with a cut back in MP numbers fell apart when the Conservatives backtracked on their promises over Lords reform. The Liberal Democrats said that boundary changes had to be part of a whole package which aimed at making the system of Government more democratic, with an elected second chamber being the ultimate aim.