Fusion Energy Regulation in the United States: Frameworks for Licensing and Deployment

The United States has established a regulatory path for commercial fusion energy that avoids the frameworks used for nuclear fission reactors, instead adapting regulations for radioactive byproduct materials. Under the 10 CFR Part 30 framework, the Nuclear Regulatory Commission (NRC) and its Agreement State Program share authority, allowing compatible state agencies to license fusion facilities. The NRC is currently finalizing specific regulatory guidance in NUREG-1556, Volume 22, with a final rule expected by December 31, 2027. This proportional approach focuses on the confinement of radioactive materials, such as tritium, rather than fission criticality safety, aiming to provide the regulatory certainty needed for private investment and deployment.

• The U.S. government has decided to regulate fusion energy using the byproduct materials framework (10 CFR Part 30) rather than the utilization facility framework used for fission reactors (10 CFR Part 50 and 52).
• The ADVANCE Act, passed in July 2024, codified the classification of fusion machines as a subset of particle accelerators, ensuring they fall under the 10 CFR Part 30 byproduct materials framework.
• Under the NRC Agreement State Program, individual states can assume primary authority to license and regulate fusion power plants if their radiation control programs are compatible with NRC standards.
• The NRC is developing NUREG-1556, Volume 22 to provide specific licensing approaches for fusion energy, with the final rule and guidance required to be published by December 31, 2027.
• Licensing requirements for fusion machines are proportional to their hazards; for instance, facilities with less than 20,000 Curies (approx. 2 grams) of unsealed tritium are exempt from submitting off-site impact analyses or emergency plans.
• Fusion energy regulation differs fundamentally from fission regulation by focusing on the confinement of radioactive materials and operational safety rather than fission reaction criticality or special nuclear material accountability.

APA

Clean Air Task Force (2026). Fusion Energy Regulation in the United States: Frameworks for Licensing and Deployment. https://www.catf.us/resource/fusion-energy-regulation-united-states-frameworks-licensing-deployment/

Chicago

Clean Air Task Force. Fusion Energy Regulation in the United States: Frameworks for Licensing and Deployment. 2026. https://www.catf.us/resource/fusion-energy-regulation-united-states-frameworks-licensing-deployment/.

Wikipedia

{{cite report |author=Clean Air Task Force |title=Fusion Energy Regulation in the United States: Frameworks for Licensing and Deployment |date=16 June 2026 |url=https://www.catf.us/resource/fusion-energy-regulation-united-states-frameworks-licensing-deployment/ |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{cleanairtaskforce2026fusion, author = {{Clean Air Task Force}}, title = {{Fusion Energy Regulation in the United States: Frameworks for Licensing and Deployment}}, institution = {Clean Air Task Force}, year = {2026}, month = jun, url = {https://www.catf.us/resource/fusion-energy-regulation-united-states-frameworks-licensing-deployment/}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }