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.
2026
John Arthur (Jay) Mullis II
2025
Kenneth J. Rueter
2024
James W. BehrensMadeline A. FeltusNarasimha Prasad Kadambi
2021
Robert F. Penn, Jr.
2020
Kevin R. O'Kula
John Bennion
2015
Remy DeVoeJustin Knowles, Sekazi Mtingwa
2013
Mimi Holland Limbach
2011
Roger W. Tilbrook
2006
John W. Landis
2003
K.K.S. PillayFrance C. Bres-TutinoGuenther Kessler
1997
William F. Vogelsang
1989
Ira BornsteinY. G. Post
1988
Morton E. WacksKarl E. J. Wirtz
1983
A. Dixon Callihan
1980
James F. Schumar
1978
Chih H. WangOctave J. Du Temple
1972
Ralph G. Chalkea
1969
Louis G. Stang, Jr.
1965
Raymond D. Maxson
1963
Walter F. Friend