Legislation governing public service pensions requires them to be increased annually by the same percentage as additional pensions (state earnings-related pension and state second pension). Public service pensions will therefore be increased from 11 April 2011 by 3.1% in line with the annual increase in the consumer prices index up to September 2010, except for those public service pensions which have been in payment for less than a year, which will receive a pro rata increase.