Welding standards for seismic force-resisting systems continue to evolve with the 2025 edition of AWS D1.8/D1.8M, the Seismic Supplement to AWS D1.1. Referenced by AISC 341, this fifth edition includes significant updates—particularly clarifying the qualification and use of filler metals per Annex A and their role in prequalified WPSs for demand-critical welds. AWS D1.8 now supports a broader range of systems found in AISC 341, including moment frames, braced frames, shear walls, and their composite versions. AISC 358 further expands prequalified moment frame options, each with unique welding and detailing requirements. This session will help you navigate these updates and integrate them effectively into your seismic design and welding practices.