The Nuclear Regulatory Commission announced on April 14 that it will regulate fusion energy systems using a framework based on the agency’s 10 CFR Part 30 process for licensing byproduct material facilities—such as particle accelerators—rather than 10 CFR Parts 50 and 52, which are used to license utilization facilities like fission power reactors. The commission’s decision means that future fusion energy facilities could be regulated by Agreement States acting with guidance from the NRC.