Richard Ayres has been an important part of environmental law for over thirty years. He has participated in most of the major Clean Air Act rulemakings, litigated major clean air policy issues, and led legislative coalitions instrumental in shaping the Clean Air Act Amendments of 1977 and 1990. From 1991 to 2000, Mr. Ayres represented clients before EPA and the courts as a partner at O'Melveny and Myers and at Howrey, Simon, Arnold, and White.

The Bailey Law Group is a woman-owned law firm based in the District of Columbia. Attorneys of the firm are focused on listening and responding to clients' needs. The firm's clients include both small and large businesses and trade associations. Attorneys in the firm have extensive experience in environmental law, commercial real estate law, and commercial litigation.

Barry Neuman has practiced environmental law for 27 years. He represents private sector, government contractor and municipal clients in civil and criminal enforcement actions, cost recovery litigation, and administrative proceedings. He also serves as general counsel and common counsel to trade associations and ad hoc business coalitions, and enjoys an active commercial litigation practice. After beginning his career with an environmental law firm in Manhatten, Mr. Neuman served with EPA's Office of General Counsel and with the Department of Justice for seven years before returning to private practice in 1985.

Bill Pedersen's practice concentrates on administrative law counselling and litigation, with particular focus on air pollution issues. During his government career, Bill served as the goverment's chief Clean Air Act lawyer, and Congress has twice written suggestions from his law review articles into the statute.

David P. Novello represents corporations and trade associations on environmental issues, with a particular focus on air quality matters. Until 1992, Mr. Novello was a senior attorney with the U.S. EPA Office of General Counsel, where he worked on a variety of Clean Air Act, hazardous waste, and international environmental issues.

O'Conor and Co., LLC was formed by Jerry O'Conor, who was formerly a partner at Venable LLP, a large law firm that is more than a century old and among The American Lawyer's 2003 AmLaw 100. He represents clients in routine and complex business and real estate transactions. He concentrates on the structuring, negotiation and documentation of business and real estate transactions.