Nuclear Regulatory Commission March 14, 2016 – Federal Register Recent Federal Regulation Documents

The U.S. Nuclear Regulatory Commission (NRC) is amending its spent fuel storage regulations by revising the Holtec International (Holtec or applicant) HI-STORM 100 Cask System listing within the ``List of approved spent fuel storage casks'' to include Amendment No. 10 to Certificate of Compliance (CoC) No. 1014. Amendment No. 10 adds new fuel classes to the contents approved for the loading of 16x16-pin fuel assemblies into a HI-STORM 100 Cask System; allows a minor increase in manganese in an alloy material for the system's overpack and transfer cask; clarifies the minimum water displacement required of a dummy fuel rod (i.e., a rod not filled with uranium pellets); and clarifies the design pressures needed for normal operation of forced helium drying systems. Additionally, Amendment No. 10 revises Condition No. 9 of CoC No. 1014 to provide clearer direction on the measurement of air velocity and modeling of heat distribution through the storage system. Each of these changes is described in Section IV, ``Discussion of Changes,'' in the SUPPLEMENTARY INFORMATION section of this document.

On March 19, 2013, the U.S. Nuclear Regulatory Commission (NRC) published a final rule that amended its regulations to establish security requirements for the use and transport of category 1 and category 2 quantities of radioactive material. Specifically, the final rule provided reasonable assurance of preventing the theft or diversion of category 1 and category 2 quantities of radioactive material, and included security requirements for the transportation of irradiated reactor fuel that weighs 100 grams or less in net weight of irradiated fuel. In December 2014, the Committees on Appropriations of the House of Representatives and the Senate directed the NRC to evaluate the effectiveness of the new regulations and determine whether the requirements are adequate to protect ``high-risk radiological material.'' In response to this mandate, the NRC is implementing a retrospective program review to provide an objective assessment of the new requirements and associated implementation guidance. This action seeks information that will be used in developing a report to Congress. The NRC plans to hold a series of public meetings to facilitate public participation. These meetings will consist of a public meeting and a series of webinar teleconferences, and the staff will publicly notice the date and times of these meetings. The staff is planning to conduct these meetings in March 2016.