In the UK, the Energy Efficiency Commitment (2002–2005) program required that all electricity and gas suppliers with 15,000 or more domestic customers must achieve a combined energy saving of 62 TWh by 2005 by assisting their customers to take energy-efficiency measures in their homes: suppliers must achieve at least half of their energy savings in households on income-related benefits and tax credits. In the second (2005–2008) EEC 2, energy saving targets were raised to 130 TWh suppliers, and here suppliers with at least 50,000 domestic customers (including affiliated licenses) are eligible for an obligation. The third phase runs from April 2008 to December 2012 and is intended to deliver 185Mt lifetime savings by 2012.