 The Treaty of Nice fixed the number of MEPs for the whole European Parliament at 736; as a consequence of the accession of Romania and Bulgaria in 2007, the number of seats allocated to the United Kingdom was reduced from 78 to 72.If the Lisbon Treaty had entered into force by June 2009 this figure would have been 73.On 31 July 2007, in line with the required reduction in representation from the United Kingdom the number of members elected from each region was modified by the Boundary Commission and Electoral Commission, based on the size of the electorate in each region.