 The Defense Nuclear Facilities Safety Board initially identified concerns related to the PC designations of the SWPF in August, 2004.DOE agreed in November,
2005, to modify the SWPF design after extensive analysis and review, resulting in an approximate two-year delay in the planned startup of SWPF.DOE anticipates that it will continue to explore possible ways to improve the schedule for design and construction of the SWPF.