ASCE/SEI 43-05 provides stringent design criteria for nuclear facilities. Due to the potential risk associated with nuclear hazards, it is desirable that nuclear facilities have a lower probability that structural damage will be caused by earthquake than do conventional facilities. The goal of this Standard is to ensure that nuclear facilities can withstand the effects of earthquake ground shaking with desired performance. This Standard will be of use to any designers or analysts involved in the design of new nuclear structures, systems, or components.