The American Clean Energy Leadership Act (ACELA), sponsored by Senator Bingaman, was passed out of the Senate Energy and Natural Resources Committee on June 17, 2009 on a bipartisan vote of 15 to 8. It was passed as an energy bill with provisions related to increased energy production, energy efficiency, renewable energy standards, technology research and development, energy market stabilization, and transmission network improvements, among others.
The American Clean Energy Security Act (ACES Act), sponsored by Representative Waxman and Representative Markey, passed the House of Representatives on June 26, 2009 on a vote of 219 to 212. It contains many provisions related to those in ACELA as well as others designed to tackle the issue of climate change. Pew's brief summary and detailed summary of the ACES Act can be found here .