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 Nuclear Energy Conference & Expo (NECX)
August 24–27, 2026
Dallas, TX|Hilton Anatole
Latest Magazine Issues
Jul 2026
Jan 2026
2026
Latest Journal Issues
Nuclear Science and Engineering
August 2026
Nuclear Technology
Fusion Science and Technology
Latest News
Mark Peters: Building on a strong foundation
Summer at the American Nuclear Society carries with it a sense of renewed momentum as the incoming president takes office and starts making plans for the year ahead. This has been particularly true in the last few years, as nuclear energy moves into a new era marked by broader public interest, stronger policy support, and a growing sense of possibility across the field. Mark Peters, the Society’s 72nd president, shares that optimism—and he is focused on turning it into results.
For more details on any of the standards below, please contact standards.
Jump to:
Before work on a draft standard can begin, a Project Initiation Notification System (PINS) form must be approved and submitted to the American National Standards Institute (ANSI). The following projects have PINS forms in the development and/or approval process:
The following projects have approved PINS forms and are in development:
This section provides notice of public review on proposed draft new American National Standards, and on proposals to revise, reaffirm or withdraw approval of existing American National Standards. Comments in connection with a draft standard must be submitted in writing/electronically (in accordance with ANS procedures) no later than the last day of the specified comment period. Comments shall be specific to the section(s) of the standard under review and include sufficient detail to enable the reader to understand the commenter's position, concerns and suggested alternative language, if appropriate.
To request an electronic copy and comment form contact standards@ans.org
Single copy price: $50.00
The following drafts are open for public comment:
ANS-8.22-202x, Nuclear Criticality Safety Based on Limiting and Controlling Moderators [revision of ANSI/ANS-8.22-1997 (R2021)]
This standard provides criteria for limiting and controlling moderators in operations with fissile materials. This standard applies to those operations that depend on moderator control for maintaining subcritical conditions. This standard does not apply to concentration control of fissile materials.
Comment deadline: August 10, 2026 (comments received after this date will not be accepted)
Projects at ballot have completed drafts that have been issued for subcommittee or consensus committee ballot/concurrent public review. Before proceeding, all comments must be considered. Multiple ballots may be needed before a draft is approved. The following draft standards are in the process of approval/comment resolution:
The following new or revised standards have recently received ANSI approval:
To request information to attend standards committee meetings, please contact standards@ans.org.
Last modified July 10, 2026, 9:19am CDT
