Bill is Chairman of the firm's Executive Committee. His practice focuses on environmental litigation, regulation and counseling, including climate change regulation and litigation, clean air regulation, environmental licensing and auditing, and waste management and clean water issues. Bill represents clients in both the United States and Europe. In the United States, his practice involves proceedings before federal and state agencies, courts and Congress; in Europe, it involves advice on European Community law.
Bill is a member of the American Bar Association and is AV® Peer Review Rated in Martindale-Hubbell. He is admitted to practice before the U.S. Supreme Court and the U.S. Courts of Appeals for the D.C., Second, Fourth, Fifth, Sixth, Seventh and Eleventh Circuits.