Revised AISC Standard Available for Public Review

A draft of the next edition of the AISC Specification for Safety-Related Steel Structures for Nuclear Facilities (AISC N690) is available for public review until March 18, 2024. This is a planned revision to the 2018 edition of the standard and will supersede the 2018 version.

Proposed updates to the standard include:

  • Updates to generally align with the 2022 edition of the Specification for Structural Steel Buildings (AISC 360)
  • New provisions to address differential settlement and elevated temperatures
  • Modifications to the nondestructive testing provisions for ultrasonic and radiographic testing
  • Updates to the requirements for steel-plate composite elements incorporating the latest research
  • A new appendix pertaining to impactive and impulsive loading

To access the draft and the review form, visit The form will be available from February 2 to March 18, 2024. You can also order a hard copy for a $35 nominal charge by contacting Martin Downs at Please submit comments using the forms provided online to Nathaniel Gonner at by March 18.