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NBIC 2025 Edition Changes

Print Date: 7/13/2025 7:28:27 AM

The 2025 edition is now available.


The 2025 edition of the National Board Inspection Code (NBIC) contains hundreds of revisions, ranging from editorial corrections and adjustments to entirely new sections and supplements.

Here is an overview of some major changes in the 2025 NBIC:

Changes in all Four Parts:

Part 1:

Part 2:

Part 3:

Part 4:

Any section in the book that received technical changes is marked with a (25) designator in the margin, next to the section’s heading. Refer to your copy of the 2025 edition for the specific details of these changes. If you have any questions about the NBIC, please contact the NBIC secretary at NBICSecretary@nbbi.org.