Signed into law in 2007 and originally named the Clean Energy Act, this body of laws aims to move the U.S. toward greater energy independence and security. It prioritizes an increase in the production of clean, renewable fuels, to increase the efficiency of products, buildings and vehicles, to promote research on and deploy greenhouse gas capture and storage options and to improve the energy performance of the federal government. The bill’s original form included subsidy cuts for the petroleum industry to promote alternative energy. After Senate opposition, the tax changes involved were dropped. The final bill focuses on automobile fuel economy, development of biofuels and energy efficiency in public buildings and lighting.