In 1978 the Labour government passed the Scotland Act which legislated for the establishment of a Scottish Assembly, provided the Scots voted for such in a referendum. However, the Labour Party was bitterly divided on the subject of devolution. Despite officially favouring it, vast numbers of members opposed the establishment of an assembly, and this division caused the failure to reach the required 40% of the electorate voting in favour of an assembly (that itself was a quota only added to the Scotland Act by an amendment proposed by a Labour MP).