McGuireWoods LLP

Aaron represents utilities, national trade associations, oil and gas companies, and manufacturers in major environmental litigation and regulatory matters across the country. His practice is focused on reducing and managing his client’s regulatory burdens and liabilities under federal environmental statutes and the Clean Air Act in particular.

Aaron has resolved complex regulatory matters before the EPA, at the White House, and through his extensive litigation experience before the federal courts. Prior to joining the firm, he served as a legal advisor to the US Congress and as an associate general counsel for the White House, where he was responsible for a broad portfolio of environmental matters, including Endangered Species Act and National Environmental Policy Act reform, helping to develop energy legislation, and responding to congressional investigations. That experience allows Aaron to provide companies with insight and practical advice concerning a wide range of issues, particularly related to federal oversight, policies, and processes.

A recognized thought leader on visibility issues, Aaron has been called to testify before the US House of Representatives about implementation of the regional haze program and how it should be changed in the future.  In addition, he has litigated significant visibility rules before numerous federal courts of appeals, arguing most recently before the Ninth and DC Circuits.