Professor Hammond is a nationally recognized expert in energy law, environmental law, and administrative law. A former environmental engineer, Professor Hammond brings technical fluency to cutting-edge issues at the intersection of law, science, and policy/Professor Hammond's articles have appeared in the Columbia Law Review, the Duke Law Journal, the Michigan Law Review, and the Vanderbilt Law Review. They are a co-author of one of the nation’s leading energy law texts, Energy, Economics and the Environment, and the environmental law text Environmental Protection: Law and Policy.

Professor Hammond is a public member of the Administrative Conference of the United States and is both a board member and a member-scholar with the Center for Progressive Reform. They are an elected member of the American Law Institute, a past Chair of the American Association of Law Schools’ Administrative Law Section.

Prior to joining the GW Law faculty, Professor Hammond served on the faculties at Wake Forest University and the University of Oklahoma College of Law, where they served as Associate Dean for Academic Affairs and Associate Director of the Law Center. Before entering academia, Professor Hammond practiced law with Bondurant, Mixson & Elmore in Atlanta, Georgia, and clerked for Judge Richard W. Story of the US District Court for the Northern District of Georgia. Professor Hammond received a BS from Virginia Polytechnic Institute & State University and JD from the University of Georgia.