California voters approved, 60.1 to 39.9 percent, Proposition 39 November 6 to provide revenue for energy efficiency and clean energy programs and money for the state’s general fund. The measure requires multistate companies to apportion their income to California based only on sales. Under the law, which takes effect this January, half of the estimated $1 billion in annual revenue will be used for energy efficiency and clean energy programs like retrofitting school and government buildings; the rest will go to the state’s general fund.