The session will present research on the effects of multiple weld repairs at the same butt-splice locations. Currently AWS D1.5 doesn't limit the number of repairs and there is inconsistent practice among States. The study looked at A709 Grades 50W and HPS70W and the fatigue performance at locations with multiple rejectable defects and repairs. The session will also look at material testing and large-scale fatigue testing being targeted, discuss the to-date results from the experimental program, and offer a path forward and what we expect the ultimate conclusions will be from the research. The session will also present research findings and recommendations on the toughness and fracture behavior of heat-affected zones (HAZ), the area of base metal near welds, which previously had no or limited guidance in the codes.