What’s New in AWS D1.1?

In this guide, CEI’s Certified Welding Inspector (CWI) breaks down the updates that shape how the code is applied in practice. The analysis covers how base-to-filler metal strength is now defined, what’s new in prequalified WPS tables, revised approaches to preheat and interpass control, and expanded requirements for testing and inspection. It also highlights important additions such as new stud classifications and clarified acceptance criteria.

Rather than restating code language, the guide connects the revisions to everyday engineering and fabrication work--showing where design calculations shift, where procedure documentation must adapt, and where inspectors will need to look closer. This resource equips professionals with the clarity needed to apply AWS D1.1 2025 effectively.