On April 28, 2005, Governor John Hoeven signed into law a legislative package that encourages wind power, ethanol, and biodiesel. North Dakota will now allow renewable energy credits (RECs) from in-state generation to be sold to out-of-state buyers, and will lower the barriers to siting wind power and investing in new transmission. Adequate transmission capacity is often a serious barrier to wind investments. The Legislature authorized continued funding for the ethanol incentives championed by the governor, as well as tax breaks for the purchase and production of both ethanol and biodiesel. The Governor also established an Office of Renewable Energy in the North Dakota Commerce department to assist public and private renewable energy and energy efficiency projects.