Lisa Heinzerling is the Justice William J. Brennan, Jr., Professor of Law at the Georgetown University Law Center. Her primary specialties are environmental and administrative law.

Heinzerling has received the Georgetown President’s Award for Distinguished Scholar-Teachers and the Frank F. Flegal faculty teaching award at Georgetown Law. She is a former public member of the Administrative Conference of the United States and a former chair of the board of the Center for Science in the Public Interest.

After finishing law school, where she served as editor-in-chief of the University of Chicago Law Review, Heinzerling clerked for Judge Richard A. Posner of the U.S. Court of Appeals for the Seventh Circuit and Justice William J. Brennan, Jr., of the U.S. Supreme Court. She was one of the inaugural Skadden Fellows, worked at Business and Professional People for the Public Interest in Chicago, and practiced environmental law in the Massachusetts Attorney General’s office for three years.

In her time at Georgetown, Heinzerling has continued to litigate cases in environmental law. Most prominently, she served as lead author of the winning briefs in Massachusetts v. EPA. A survey of over 400 environmental lawyers and law professors ranked this case as the most significant case in environmental law.

Heinzerling also previously served as senior climate policy counsel to the administrator of the EPA and as associate administrator of the EPA’s Office of Policy. In 2008, she served as a member of President Obama’s EPA transition team.

Heinzerling holds an A.B. from Princeton University and a J.D. from the University of Chicago.

Explore our experts

O’Neill’s experts bring experience from academia, government, civil society, private practice, and nongovernmental organizations to a wide variety of topics in national and global health law.

View all of our experts

Explore our faculty

Georgetown Law’s health law courses are taught by a diverse faculty of academics, subject matter experts, and practitioners from government, international organizations, and private practice.

View all of our faculty

Explore our staff

The O’Neill Institute’s work is led by a talented team of lawyers, researchers, academics, administrators, and public policy experts.

View all of our staff