Report a Safety Concern
Search

The U.S. Nuclear Regulatory Commission is in the process of rescinding or revising guidance and policies posted on this webpage in accordance with Executive Order 14151 Ending Radical and Wasteful Government DEI Programs and Preferencing, and Executive Order 14168 Defending Women From Gender Ideology Extremism and Restoring Biological Truth to the Federal Government. In the interim, any previously issued diversity, equity, inclusion, or gender-related guidance on this webpage should be considered rescinded that is inconsistent with these Executive Orders.

Home Nuclear Reactors New Reactors Advanced Reactors Modernizing How We Regulate

Microreactors

subscribe to page updates

As the advanced reactor landscape continues to evolve, interest in the licensing and deployment of microreactors is increasing. The staff has engaged with microreactor developers and other external entities to better understand their technologies and planned deployment models.

The NRC stands ready to license microreactors today under 10 CFR Part 50 and 10 CFR Part 52. The proposed 10 CFR Part 53, will provide an additional, technology-inclusive framework for licensing advanced technologies, including microreactors.

The staff is proactively reviewing the current regulatory framework and identifying ways to streamline the licensing of microreactors, acknowledging their reduced risk profiles and enhanced safety features. Further information on the staff’s activities can be found through the links below.

Regulatory Activities

Image of colorful blocks stacked up on each other

Related Information

Guidance

rendering of an image of rocks making a path in water

Licensing Activities

Conference room with people sitting around a rectangular table

Public Meetings

Image of people standing in a room

Page Last Reviewed/Updated Thursday, April 10, 2025