National Structural Steelwork Specification For Building Construction 7th Edition Pdf [exclusive] -

: Welding standards have been elevated. For Execution Class 2 (EXC2) , contractors must now be certified to BS EN ISO 3834-3, while Execution Class 3 (EXC3) requires the even more comprehensive BS EN ISO 3834-2.

The document is typically invoked within contract documents (e.g., under the NEC or JCT contracts) as the definitive standard for workmanship. : Welding standards have been elevated

Yes, if your contract references “current edition.” Most industry bodies (RIBA, ICE) now mandate the 7th. Continuing to use the 6th may constitute professional negligence if a failure occurs due to a clause that was tightened in the 7th. Yes, if your contract references “current edition

: The baseline is Execution Class 2 (EXC2) , but it now includes detailed annexes for Execution Class 3 (EXC3) for both static and fatigue-sensitive structures. : Welding standards have been elevated