EVANSVILLE, IN – Gov. Mitch Daniels signed the Clean Indiana Energy bill in hopes of reviving Indiana's coal industry, according to the Web site, www.grainnet.com. The bill is part of the governor's economic growth package, with incentives in the law encouraging the development of coal gas and biomass energy plants which utilize Indiana's supply of clean coal, corn, soybeans, and other renewable organic material. The new bill could also assist Indiana in becoming more self-sufficient in energy production and meet more strict environmental standards. Gov. Daniels signed legislation earlier this spring that requires biofuel use in state vehicles whenever possible.