ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Explore membership for yourself or for your organization.
Conference Spotlight
2026 ANS Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
Latest Magazine Issues
Apr 2026
Jan 2026
Latest Journal Issues
Nuclear Science and Engineering
May 2026
Nuclear Technology
March 2026
Fusion Science and Technology
Latest News
NRC introduces microreactor regulatory framework
The Nuclear Regulatory Commission has released a new licensing framework for microreactors and similar reactor designs that may provide a more suitable pathway for applicants with simpler technologies.
The proposed rule—known as Part 57—is the latest to come out of the NRC’s rules review and overhaul stemming from the ADVANCE Act and 2025 nuclear-related executive orders. It is also the latest framework developed for advanced reactor designs shifting away from light water reactor technology, such as the Part 53 rule finalized in March.
Technical Session|Panel|Policy, Regulations, Safety, and Security
Tuesday, April 28, 2026|8:00–9:20AM EDT|Room 302/303/304
The development and deployment of space nuclear power systems that include radioisotope power sources and fission reactors is underway by the US government and private industry. Review and approval for nuclear systems have been well established for government radioisotope systems based upon the use of Plutonium-238, but alternative materials and designs are now being considered, and private industry are proposing to build and launch both radioisotope and reactor systems. The safety review and launch approval process are critical to the future of nuclear power systems and include the review by multiple agencies. Private industry may now fall under the FAA for launch approval, and the government will seek approval through the INSRB as defined in NSPM-20. There have been numerous questions that have been raised about how both government and commercial launches will be coordinated and approved through NASA, the FAA and DOW. The purpose of this panel is to bring together experts to discuss their vision on how these issues will be resolved.
Patrick McClure
SpaceNukes
Ryan Edwards
NASA
Alex Gilbert
Zeno Power
Russ Johns
LANL
To join the conversation, you must be logged in and registered for the meeting.
Register NowLog In