Biofuels have potential to meet aviation industry needs, possibly including managing risks of upward fuel price trends and fuel price volatility and risks associated with greenhouse gas (GHG) emissions. The aviation industry has taken steps to explore this potential through participation in alternative aviation fuel research, development, and demonstration. Through these activities, additional potential benefits of biofuels have been identified, such as chemical properties that could improve fuel performance or complement other alternative fuels. Public and private initiatives have targeted goals for biofuels in aviation, including support of national goals, a Federal Aviation Administration volumetric goal, and goals of the Commercial Aviation Alternative Fuels Initiative (CAAFI), as described in the Farm to Fly report (U.S. Department of Agriculture et al. 2012). The CAAFI summarizes actions that the aviation industry might take to advance development of aviation biofuels (Miller and Heimlich 2013). The International Air Transport Association regularly tracks the status of alternative aviation fuels (International Air Transport Association 2013).