Before revision: More recently , California Republican Governor Arnold Schwarzenegger, with the support of 16 other states, sued the federal government and the United States Environmental Protection Agency for the right to set vehicle emission standards higher than the federal standard, saying that the Clean Air Act entitles states to do so.
After revision: In 2007 , California Republican Governor Arnold Schwarzenegger, with the support of 16 other states, sued the federal government and the United States Environmental Protection Agency for the right to set vehicle emission standards higher than the federal standard, saying that the Clean Air Act entitles states to do so.