NRC Chairman Ho K. Nieh Leads Regulatory Overhaul to Accelerate Nuclear Energy Expansion

Ho K. Nieh, the newly designated chairman of the Nuclear Regulatory Commission, is leading a comprehensive regulatory overhaul designed to accelerate nuclear reactor construction in the United States. Nieh, who was sworn in as an NRC commissioner in December and designated chairman by President Trump less than a month later, brings nearly three decades of experience working across the nuclear energy ecosystem, including roles with the Navy's nuclear program, the International Atomic Energy Agency, and as an NRC inspector. In May 2025, Trump signed four executive orders aimed at bolstering the nuclear industry, including directives to quadruple domestic nuclear capacity to 400 gigawatts by 2050, boost uranium mining and enrichment, accelerate advanced reactor development, and streamline regulatory approval processes. The NRC has been tasked with making licensing decisions within 18 months, reforming agency culture and staffing, and conducting a comprehensive review of decades-old regulations. This revival effort comes roughly 20 years after a previous nuclear renaissance failed to materialize, derailed by the rise of fracking, the 2008 financial crisis, and the 2011 Fukushima accident.