The DOE Safety Evaluation Report (safe-010) notes that 'only 24 packages (24 fuel elements)' would be authorized under the amendment, one fuel block per package, each limited to 234.94 grams of U-235: at most about 5.64 kg of U-235 in all (24 x 234.94 g). At an enrichment under 20%, each block carries at least about 1.17 kg of uranium (234.94 g divided by 0.20), so 24 blocks hold roughly 28 kg of uranium or more. Valar's NSDA describes a core of 76 fuel elements with about 250 kg of heavy metal at 4.95%, which is about 12.4 kg of U-235 (250 kg x 4.95%). The authorization expires on 30 June 2027 or when shipments are complete. At the state Trust Lands hearing on 17 September 2026, a Valar speaker described Ward 250 as 'very lightly loaded' and not a fully loaded core (mine-033). Whether other fuel reached Ward 250 by another route is not stated in any record read. Per element, the NSDA's own figures imply 162.83 g of U-235 in 3.29 kg of heavy metal; DOE's block holds 234.94 g of U-235 in 1.18 kg of uranium. No single enrichment fits both (76 such blocks holding 250 kg would need 7.14%), so Table 6's equal per-element loading does not match the block DOE cleared, unless some of the 76 elements are unfueled or loaded differently, which the paper does not say.

• Safety Evaluation Report, Letter Amendment of Certificate of Compliance No. 9979 for the Model 9979 Package, Docket 26-35-9979 (U.S. Department of Energy, Office of Packaging and Transportation (Packaging Certification Program), 2026-05-20) primary government “only 24 packages (24 fuel elements) would be authorized for shipment”
• Ward250 Nuclear Safety Design Agreement, No. 100403, Rev 02 (status: Draft; issued for Public Release) (Valar Atomics, 2025-10) primary company