The US Nuclear Regulatory Commission proposed a rule on July 7, 2026, to modernize environmental regulations for nuclear facilities. The changes aim to limit reviews to effects the agency can directly regulate, shifting away from broader environmental concerns.
Under the National Environmental Policy Act, reviews usually result in a Categorical Exclusion, an Environmental Assessment, or an Environmental Impact Statement. The proposed changes would focus on radiological health and safety impacts, rather than broader ecological or noise issues.
The agency argues that it lacks the authority to prevent or mitigate many environmental effects. Because the NRC cannot stop a construction site from generating dust, it will not consider that impact during its review. This shift creates a narrower focus for the agency.
Changes to the Process
The proposed rule introduces several procedural updates. It would expand the use of categorical exclusions and allow the adoption of other agencies’ exclusions. A process for creating new exclusions on the NRC website is also included.
Under the new proposal, the NRC would discontinue publishing draft Environmental Assessments or Impact Statements for public comment. Instead, the agency would provide additional flexibility when deciding whether to prepare an EA or an EIS. Developers could also prepare their own EA or EIS under NRC supervision for adoption by the agency.
While the NRC’s proposed changes may streamline the agency’s review of an application, these proposed changes may result in additional work for applicants, other federal agencies, state agencies, and local stakeholders. The agency is accepting comments on the proposed rule until August 21, 2026.
Part of this shift involves reconsidering how agencies handle financial restrictions on foreign entities. US sanctions hold on foreign accounts eased as the commission prioritizes specific regulatory pathways over broader economic controls.
The proposed rule represents a significant shift toward a more limited, focused NEPA process in which environmental review is centered on impacts the NRC can directly regulate and alternatives the NRC has the authority to implement. This approach expands the agency’s use of a “broad zone of reasonableness,” a concept supported by recent judicial decisions that emphasize deference to agency judgment in NEPA cases.
The most significant change involves limiting NEPA reviews to environmental effects that are within the NRC’s “substantive statutory authority.” Because the NRC’s authority is generally tied to radiological health and safety, the agency proposes that its environmental reviews should primarily evaluate radiological impacts and certain associated chemical hazards. Consequently, analyses would no longer consider non-radiological impacts such as dust, noise, non-radiological water and air quality impacts, or non-radiological ecological impacts during construction.
The proposed rule would expand the use of categorical exclusions, allow for the adoption of other agencies’ exclusions, create a process for establishing additional exclusions through the NRC website, and allow any interested party to petition for new exclusions. Furthermore, the agency would establish procedures for applicants to prepare their own EA or EIS under NRC supervision for adoption by the agency. The NRC also issued updated draft guidance drawing a distinction between the narrowed scope of NEPA reviews and compliance with other federal statutes, including the Coastal Zone Management Act of 1972, the Endangered Species Act, Marine Mammal Protection Act, and the National Historic Preservation Act.
Streamlined NEPA reviews at the NRC, coupled with other regulatory reform efforts, may provide a shorter route to an NRC license for reactor developers but also create new and novel risks for near-term applicants. An NRC license is not all that is required to bring nuclear power to the grid; developers still need to engage with local authorities and state agencies to receive required approvals and permits prior to construction and operation. It is also unclear how other federal agencies with different statutory mandates will be able to leverage the NRC’s limited-scope NEPA reviews to satisfy their own NEPA obligations.
