CHICAGO - A draft of the next edition of the AISC Specification for Safety-Related Steel Structures for Nuclear Facilities (AISC N690) is now available for public review and comment. 

The 2024 update of N690 will supersede the 2018 version.

The latest draft includes:

• Updates to the notch toughness requirements for materials subject to impactive and impulsive loads


• A proposed method for determining faceplate thickness for steel-plate composite structural elements subjected to impactive and impulsive loads

The draft will be available as a free download at aisc.org/publicreview between October 9 and November 8, 2023. If you’d prefer to review a hard copy, please contact Martin Downs at [email protected]; there is a $35 nominal charge for printed copies.

Please submit comments using the form provided online or by email to Nathaniel Gonner ([email protected]) by November 8, 2023, for consideration.

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For more information contact:

Dani Friedland
Director of Marketing Communications
773.636.8535
[email protected]

About the American Institute of Steel Construction

The American Institute of Steel Construction, headquartered in Chicago, is a non-partisan, not-for-profit technical institute and trade association established in 1921 to serve the structural steel design community and construction industry. AISC's mission is to make structural steel the material of choice by being the leader in structural steel-related technical and market-building activities, including specification and code development, research, education, technical assistance, quality certification, standardization, market development, and advocacy. AISC has a long tradition of service to the steel construction industry of providing timely and reliable information.