Special nuclear material of low strategic significance
Special nuclear material of low strategic significance means:
(1) Less than an amount of special nuclear material of moderate strategic significance, but more than 15 grams of uranium-235 (contained in uranium enriched to 20 percent or more in the U
235 isotope) or 15 grams of uranium-233 or 15 grams of plutonium or the combination of 15 grams when computed by the equation, grams = grams contained U
235 + grams plutonium + grams U
233; or
(2) Less than 10,000 grams but more than 1,000 grams of uranium-235 (contained in uranium enriched to 10 percent or more, but less than 20 percent in the U
235 isotope); or
(3) 10,000 grams or more of uranium-235 contained in uranium enriched above natural, but less than 10 percent in the U
235 isotope.