From 1980 through early 2016, Mr. Geldermann has practiced law on behalf of the United States and its regulatory agencies in federal courts nationwide -- from Seattle, Washington, to the Florida Everglades, and from Boston, Massachusetts, to San Diego, California, and in a Pacific Ocean territory of the United States, the Commonwealth of the Northern Mariana Islands. 

 

       As lead appellate counsel, Mr. Geldermann has briefed and/or presented oral arguments in cases in the United States Courts of Appeals for the Second, Fourth, Fifth, Seventh, Eighth, Ninth, Tenth, and the District of Columbia Circuits.

 

        Mr. Geldermann has also handled the lead counsel role in cases in the U.S. District Courts for the Northern, Central, and Southern Districts of California, the District of Arizona, the District of Colorado, the Southern District of Texas, the Southern District of Florida, the District of Massachusetts, the Western District of Oregon, the Eastern District of North Carolina, the District of South Carolina, the Northern District of Illinois, the Western District of Kansas, the District of Northern Mariana Islands, and the District of Columbia. He has also litigated automatic stay and injunctive remedial issues in the U.S. Bankruptcy Court in the Northern District of Texas, concerning the Nelson Bunker Hunt bankruptcy estate.

 

       Mr. Geldermann has drafted federal agency regulations that are still in effect currently, and drafted several opinions and orders issued by federal agencies. He has been responsible for rendering policy advice on major federal agency initiatives.  He has served as an advisory attorney, a regulation and opinion writer, and a trial and appellate level litigator for the U.S. Commodity Futures Trading Commission (1980 - 1987), and as an Assistant General Counsel for the CFTC (1987 - 1991).  

 

          From 1991 through 1999, Mr. Geldermann served as an appellate litigator in the Office of General Counsel for the Federal Energy Regulatory Commission (FERC), where he defended FERC electric, oil and gas, ratemaking, and hydropower licensing opinions and orders against wholesale and retail industry challenges.  During that era, he became well-versed in a broad range of public utility regulatory issues. Finally, Mr. Geldermann served as a trial attorney (1991-2002), Senior Attorney (2002 - 2011), and Senior Litigation Counsel (2011 - 2016) in the Natural Resources Section of the U.S. Department of Justice's Environment and Natural Resources Division. There, he worked to defend challenges to myriad actions of the federal environmental and resource agencies, including the U.S. Environmental Protection Agency, the U.S. Army Corps of Engineers, the National Park Service, the U.S. Fish & Wildlife Service, the USDA Forest Service, U.S. Bureau of Reclamation, the U.S. Bureau of Indian Affairs, the National Science Foundation, and the Department of the Interior's Office of Insular Affairs.