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August 24–27, 2026
Dallas, TX|Hilton Anatole
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ANS names 2027 Congressional Fellows
Loumis
Lockhart
The American Nuclear Society is excited to announce that it has officially selected two of its members to serve as the 2027 Glenn T. Seaborg Congressional Science and Engineering Fellows. Madeline Lockhart and Aristidis Loumis will provide key support to one of the Society’s four strategic pillars of action: informing policymakers to enable better decisions and stronger policies. They will achieve this by serving a one-year term on Capitol Hill either in a congressional member’s personal office or with a congressional committee, starting next January.
Some context: ANS Congressional Fellows are among the nearly 30 scientists and engineers who participate annually in the American Association for the Advancement of Science (AAAS) Congressional Science and Engineering Fellowship Program. More than 2,000 fellows have served through the overarching program since its inception in 1973. ANS initiated its program in 2000, and in 2023, expanded it to host two fellows per year.
Donald Hoffman is the current president and CEO of EXCEL Services Corporation. He founded EXCEL Services Corporation in 1985 to provide specialized professional services to nuclear utilities in licensing, regulatory support, and operational areas.
Hoffman is very active in the nuclear industry and served as the 59th president of the American Nuclear Society. He is the Chair of the Virginia Nuclear Energy Consortium Authority which is charged with the responsibility for making the Commonwealth a national and global leader in nuclear energy and to serve as an interdisciplinary study, research, and information resource for the Commonwealth on nuclear issues. He is the Co-Chair of the ANS Special Committee on Nuclear in the States which shall identify and review: state and regional-opportunities for new nuclear development in the US; state-level legislative and regulatory barriers preventing such development; federal policies that have a direct impact on state level decision-making; lessons learned from the new nuclear development projects currently under construction, and determine the best course forward. He is also the president of Eagle Alliance, a U.S. based grassroots organization that represents all facets of nuclear science and technology.
Prior to starting EXCEL, Hoffman served in the U.S. Nuclear Submarine Navy as a senior reactor operator and engineering officer. He was a branch chief and a lead reviewer at the Nuclear Regulatory Commission reviewing license applications and technical specifications.
Hoffman has been a member of ANS since 1984, has served on the Board of Directors, and has been an active member of many divisions and committees.
He received his degree in Nuclear Engineering and Technology in 2010 from Excelsior College in New York.
He continues to make presentations and provide testimony regarding the benefits of nuclear science and technology to the U.S. Congress, the U.S. Governors, the National Governors Association, and other U.S. organizations.
Read Nuclear News from July 2013 for more on Don.
