×

US nuclear power regulator allows applicants to include data from agency projects

By Thomson Reuters Oct 22, 2026 | 3:17 PM

WASHINGTON, Oct 22 (Reuters) – The US nuclear power regulator finalized a rule on Thursday allowing companies to use data from demonstration projects at US ​agencies, calling it the first major change to ‌reactor regulations since President Donald Trump ordered faster agency reviews.

• The Nuclear Regulatory Commission rule will now allow companies to use analyses, data and information from reactor demonstration projects at the US ‌energy ​and defense departments to support an ⁠expected wave of applications ⁠to the NRC of high-tech reactor projects, including small modular reactors.

• Trump’s orders in May 2025 directed the NRC to finish approvals for new reactor designs ​within 18 months, igniting criticism that his administration was reducing the NRC’s independence. Nuclear plants are powered by ⁠radioactive fuels the NRC monitors ⁠at all stages. The agency also monitors ​the safety of nuclear reactors.

• NRC Chairman Ho Nieh said ​the rule will not allow projects to get around ‌his agency’s strict standards. “This is not a shortcut, this is not a compromise,” Nieh told reporters.

• Nieh said NRC reviews could be more stringent on “consequence analysis,” or estimations ⁠of potential offsite radiological, health or economic impacts of severe reactor accidents, or hazards from natural events like earthquakes or tornadoes.

• ⁠Nuclear safety activist ‌and physicist Edwin Lyman of the Union ⁠of Concerned Scientists said it is ​critical that ‌the NRC maintain its authority to ​make independent ⁠safety and security determinations and not simply ape the decisions of other agencies.

• “For all their flaws, the NRC’s licensing procedures are far more rigorous and transparent” than the energy and defense department procedures, Lyman said.

(Reporting by Timothy Gardner; editing ​by David Gaffen)