Tison Campbell is admitted to practice in Virginia. He is not currently admitted in the District of Columbia. He is supervised by a member of the D.C. Bar.
Tison Campbell is a partner in the firm’s Energy, Infrastructure, and Resources practice. His practice focuses on nuclear energy and the use of nuclear materials.
Tison joins the firm after more than 19 years at the US Nuclear Regulatory Commission, where he served in various senior leadership roles. Most recently, he was the assistant general counsel for legislation, ethics, and administrative law. In this role, Tison supported the NRC’s international programs and the agency’s interactions with Congress related to legislation while serving as the NRC’s designated agency ethics official. Before that, Tison was the assistant general counsel for materials, fuel cycle, and waste programs. In this role, he supervised the agency’s legal work related to licensing activities for nuclear fuel-cycle facilities and the use of nuclear materials. Tison also served as assistant general counsel for operating reactors, with responsibility for the Office of the General Counsel’s work related to operating nuclear reactors, including the review of subsequent license renewal applications. In addition, he has experience as the acting assistant general counsel for reactors and materials rulemaking, where he led OGC’s rulemaking support activities and provided legal support for the Agreement State Program. From 2014-2016, Tison was the acting deputy director of the Office of Commission Appellate Adjudication. In this role, he supported the Commission’s adjudicatory work by preparing draft legal decisions on topics including nuclear reactor licensing, used fuel storage, and enforcement.
Tison joined the NRC in 2006 through the agency’s Honor Law Graduate Program as an attorney in the New Reactor Programs division. During his tenure, he also worked in the Materials Litigation and Enforcement Division, served as the lead counsel for the NRC’s Waste Confidence and Continued Storage projects, and spent time in the Office of Commissioner Magwood, the Office of Enforcement, and the Office of the Chief Information Officer.
Tison attended the International School of Nuclear Law (ISNL), established by the OECD Nuclear Energy Agency (NEA) in co-operation with the University of Montpellier, where he received his university diploma in International Nuclear Law. Tison also holds a B.S. in Physics, with distinction, from the University of Virginia.
Prior to joining the firm, Tison worked at the United States Nuclear Regulatory Commission (NRC) in the Office of the General Counsel in practice areas related to rulemaking, operating nuclear reactor regulation, the National Materials Program and interactions with Agreement State regulators, the nuclear fuel cycle, interactions with Congress, international law, and federal ethics.
- “Pressure to succeed: Small modular (nuclear) reactor approvals on the horizon?,” American Bar Association, March 2026
- “Radiation Standard Shift Might Add Complications for COS.” Law360, February 2026
- "Unresolved Conflicts: How Revisiting NEPA Section 102(2)(E) Could Increase Efficiency, Simplify Government, and Save Taxpayers Money," NYU Environmental Law Journal, 2010
- "Radiation hardness of the PIBETA detector components," December 2002
- Quoted, “Westinghouse Enters Partnership for $80 Billion of New Nuclear Reactors,” POWER Magazine, 29 October 2025
- Quoted, “Trump Uses Government-Investing Push to Boost Nuclear Industry,” Bloomberg Law, 28 October 2025
