Proposed rules on ALARA, reactor licensing revamp introduced by NRC

[Marlin]

Proposed rules on ALARA, reactor licensing revamp introduced by NRC

https://www.ans.org/news/2026-07-02/article-8177/proposed-rules-on-alara-reactor-licensing-revamp-introduced-by-nrc/

[Core Content]

The Nuclear Regulatory Commission introduced two proposed rules to update radiation protection standards and overhaul reactor licensing procedures. The first proposal removes the as low as reasonably achievable (ALARA) requirement from regulations, while the second aims to streamline licensing for new reactor construction, license renewals, and advanced technology deployment.

These changes respond to Executive Order 14300, which directed the agency to reconsider regulatory reliance on the linear no-threshold model. By replacing subjective ALARA standards with objective compliance requirements, the NRC intends to provide clearer guidance for new reactor designers. The licensing reforms also seek to reduce reliance on exemptions by extending renewal terms to 40 years.

A proposed rule from the Nuclear Regulatory Commission would update radiation protection regulations and remove "as low as reasonably achievable" (ALARA) language without changing specific radiation exposure limits that are based on the linear no-threshold (LNT) model of low-dose radiation health effects. A second proposed rule would reform...

The NRC unveiled the two proposed rules on July 1 and published them in the ADAMS public document library the same day. The rules have not, at this writing, been published in the Federal Register, but once they are, each rule will be open for public comment for 45 days.

Background on ALARA and LNT: Since its introduction in the 1970s, the ALARA principle has received both support and criticism within and outside the nuclear community. In 2017, the American Nuclear Society identified low-dose radiation regulation as an ANS Nuclear Grand Challenge. Recent and ongoing work in policy and research communities has sought to establish a scientific basis to resolve questions of low-dose radiation policy and regulation.

Read the full article at ans.org:
https://www.ans.org/news/2026-07-02/article-8177/proposed-rules-on-alara-reactor-licensing-revamp-introduced-by-nrc/