During devolution, a convention was created to manage the power of Westminster to legislate on matters within the legislative competence of the Scottish Parliament. This is known as the Sewel Convention, and the related Scottish parliamentary motions are now known as legislative consent motions (previously Sewel motions). These motions (of which there are around a dozen per year) allow MPs to vote on issues which, among other things, are within the Scottish Parliament's legislative competence. The Sewel Convention states that the Westminster Parliament will not normally legislate on devolved matters in Scotland without first obtaining the consent of the Scottish Parliament.