Michael F. Mundaca currently is Senior Advisor for Policy within the Treasury Department's Office of Tax Policy and the Acting Assistant Secretary for Tax Policy. Mr. Mundaca served in the Treasury Department during the Clinton Administration and returned to the Treasury Department in 2007, as the Deputy Assistant Secretary for International Tax Affairs. Before that appointment, he was a partner for five years in the International Tax Services group of Ernst & Young's National Tax Department, in Washington, D.C. His practice focused on cross-border planning and structuring, including especially tax treaty issues, and on international legislative and regulatory monitoring and consulting. Before joining Ernst & Young, Mr. Mundaca served for over five years in Treasury's Office of the International Tax Counsel, leaving as the Deputy International Tax Counsel. He was also Treasury's Senior Advisor on Electronic Commerce. Prior to that first stint in Treasury, he was an associate at Sullivan & Cromwell, a law firm in New York. Mr. Mundaca has been an adjunct professor at the Georgetown University Law Center, teaching a seminar on tax treaties. Mr. Mundaca received a B.A. in philosophy and in physics from Columbia University, in 1986, and an M.A.in philosophy from the University of Chicago, in 1988. He received a J.D. from the University of California, Berkeley, School of Law (Boalt Hall), in 1992, where he was Senior Executive Editor of The California Law Review and a member of the Order of the Coif. He also has an LL.M., in taxation (international tax specialization), from the University of Miami.