Independent Spent Fuel Storage Installation, Department of Energy; Fort St. Vrain

The U.S. Nuclear Regulatory Commission (NRC) is issuing an exemption in response to a March 19, 2015 request, as supplemented April 3, and June 1, 2015, from the Department of Energy (DOE or the licensee). The exemption seeks to delay the performance of an O-ring leakage rate test specified in Technical Specification (TS) 3.3.1 of Appendix A of Special Nuclear Material License No. SNM-2504, and to delay the performance of an aging management surveillance described in the Fort St. Vrain (FSV) Final Safety Analysis Report (FSAR) to check six Fuel Storage Containers (FSCs) for hydrogen buildup, both until June, 2016.