Energy Law Involves the use and regulation of electricity, natural gas, coal, hydropower, oil, and alternative energy sources like solar, wind, biomass and alcohol fuels, and geothermal -- including rate regulation, energy purchase and sale, public utilities, energy facility licensing, and deregulation of power and electric companies. Natural Resources Law encompass land, fish, wildlife, biota, air, water, ground water, drinking water supplies, and other such resources belonging to, managed by, held in trust by, appertaining to, or otherwise controlled by the United States, any State or local government.
Challenge (formerly, Challenge Mills) is an unincorporated community in Yuba County, California. It is located on Dry Creek 30 miles (48 km) northeast of Marysville, at an elevation of 2595 feet (791 m). A post office opened at Challenge in 1895.