The Smith Commission was announced by Prime Minister David Cameron on 19 September 2014 in the wake of the 'No' vote in the 2014 Scottish independence referendum. The establishment of the commission was part of the process of fulfilling The Vow made by the leaders of the three main unionist parties during the last days of the referendum campaign. The Vow promised the devolution of more powers from the Parliament of the United Kingdom to the Scottish Parliament in the event of a No vote.
Following the No vote, Lord Smith of Kelvin was given the task to "convene cross-party talks and facilitate an inclusive engagement process across Scotland to produce, by 30 November 2014, Heads of Agreement with recommendations for further devolution of powers to the Scottish Parliament". Ten representatives were nominated by the political parties with elected members in the Scottish Parliament; the Commission started its discussions on 22 October. Agreement was reached and the report published on 27 November 2014.
Following the Conservative election victory at the 2015 UK General Election, the Scotland Bill 2015–16 was proposed in the first Queen's Speech, to put into effect the recommendations of the Smith Commission.
The Vow was a joint statement by the leaders of the three main unionist parties, David Cameron, Ed Miliband and Nick Clegg, promising more powers for Scotland in the event of a No vote. Included in The Vow was that in the event of a No vote:
The Vow was published in the Daily Record, one of the main tabloid newspapers in Scotland that also backed a No vote in the referendum. The explanation and background to the publication of The Vow was explained in the Daily Record itself one year after the referendum when it outlined that following a poll showing the 'Yes' side ahead, it was felt that firm promises of more powers were required from the 'No' side.