Environment and Natural Resources Division

Environment and Natural Resources Division

ENRD Official Seal
Justice Department Files Civil Action to Support Major Expansion of Arlington National Cemetery

Meet the Director

Assistant Attorney General

Jeffrey B. Clark
Assistant Attorney General

Jeffrey Bossert Clark began serving as Assistant Attorney General of the Environment and Natural Resources Division (ENRD) on November 1, 2018. Prior to his confirmation as Assistant Attorney General, Mr. Clark was a partner with the international law firm of Kirkland & Ellis LLP in its Washington, D.C. office.  During his time at the firm, he practiced in diverse areas of law, ranging from environmental to antitrust.  Mr. Clark has argued and won numerous cases in multiple U.S. Courts of Appeals.  He has deep experience in matters involving the Clean Air Act, the National Environmental Policy Act, the Energy Policy and Conservation Act of 1975, and the Energy Independence and Security Act of 2007.

For more information on Assistant Attorney General Clark, please see his full bio.

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Jeffrey Bossert Clark
Assistant Attorney General


Office of the Assistant Attorney General
(202) 514-2701

What We Do

The Environment and Natural Resources Division (ENRD) is responsible for bringing cases against those who violate the nation’s environmental laws as well as defending the federal government in complex civil litigation arising under a broad range of environmental statutes.

The Division is organized into ten sections:

With offices across the United States, the Division is the nation's environmental lawyer, and the largest environmental law firm in the country.