A.J. Singletary works on clean air and climate law, policy, and transactions. He represents renewable energy developers, power plant operators, vehicle and engine manufacturers, policy institutes, and related clients on matters including strategic direction related to environmental law and policy, air quality permits under the Clean Air Act, regulation of vehicle emissions, new and existing climate change laws and regulations, and offshore wind development.

A.J. also advises startup companies and organizations. He helps founders, partners, and stakeholders establish organizations with a societal benefit, including benefit corporations and L3Cs. He has experience determining strategy, writing founding documents, and working with state regulators. He also supports carbon credit transactions.

Before entering private practice, A.J. served at the U.S. Department of Transportation where he coordinated climate change initiatives in the Office of the Secretary, assisted in developing fuel economy and greenhouse gas standards for light-duty and heavy-duty vehicles, and helped plan federal investments for sustainable and livable communities. He served as Acting Senior International Advisor for the Office of Environment and Energy at the Federal Aviation Administration. A.J. also worked for Airlines for America, a leading aviation trade association, where he focused on advancing environmental goals critical to all major airlines.

A.J. has a JD from Northwestern’s Pritzker School of Law, an MBA from Northwestern’s Kellogg School of Management, and a BA in Earth and Planetary Sciences from Washington University in St. Louis.



Northwestern University Pritzker School of Law J.D., 2016,
cum laude
, Point Scholar

Northwestern University Kellogg School of Management
M.B.A., 2016

Washington University in St. Louis B.A., 2008, summa cum laude, Truman Scholar, Udall Scholar