Tammy Klein is senior vice president for Hart Energy and in that capacity is ultimately responsible for the company's downstream consulting services, including the International Fuel Quality Center (IFQC), Global Biofuels Center (GBC) and the World Refining & Fuels Service (WRFS), its multiclient studies, as well as the group's individual client project and retainer consulting. Klein leads Hart's annual supply and demand outlook for biofuels, and is an expert on global biofuels policy and market issues. She is also an expert on clean conventional fuels and continues to serve as a senior analyst for Hart Energy. She holds a J.D. from the Georgetown University Law Center, with an emphasis on international environmental law, and is a member of the District of Columbia and Virginia bars.