Under the Representation of the People Act 1948 and the House of Commons (Redistribution of Seats) Act 1949 new constituency boundaries were defined and first used in the 1950 general election of the House of Commons of the Parliament of the United Kingdom (Westminster). In Scotland, where boundaries had been unaltered since 1918, the legislation defined 32 burgh constituencies (BCs) and 39 county constituencies (CCs), with each electing one Member of Parliament (MP) by the first past the post system of election. Therefore, Scotland had 71 parliamentary seats.