Before joining HHS, Mark H. Greenberg directed the Georgetown University Center on Poverty, Inequality and Public Policy, a joint initiative of the Georgetown University Law Center and the Georgetown Public Policy Institute. In addition, he was a Senior Fellow at the Center for American Progress (CAP) and the Center for Law and Social Policy (CLASP). He previously served as the Executive Director of CAP's Task Force on Poverty and as CLASP’s Director of Policy. During his career, Mr. Greenberg has written extensively on issues relating to federal and state welfare reform efforts; workforce policy issues affecting low-income families; child care and early education policy; tax policy; poverty measurement; and a range of other low-income issues. In addition, he frequently provided technical assistance to state and local governments regarding poverty reduction strategies. Prior to coming to D.C., Mr. Greenberg worked at Jacksonville Area Legal Aid in Florida and the Western Center on Law and Poverty in Los Angeles, California. Mr. Greenberg is a graduate of Harvard College and Harvard Law School.
Mr. Greenberg joined ACF in 2009 as the Deputy Assistant Secretary for Policy, and served in that position until 2013, when he became the Acting Assistant Secretary for the Administration for Children and Families. He also served as Acting Commissioner for the Administration on Children, Youth and Families from 2013-2015.