 美国在 2011 年宣布可以从储备了大约 230 吨低浓铀的“美国保证燃料供应”机制中供应核燃料，此种低浓铀是稀释 17.4 公吨被宣布为超过防御需求的高浓铀后所得。“美国保证燃料供应”机制可提供给美国的任何伙伴国，如果该伙伴国亟需浓缩铀，而在商业市场上又没有别的办法可满足该需求。
• In 2011, the United States announced the availability of nuclear fuel from the American Assured Fuel Supply (AAFS), a reserve of approximately 230 tons of LEU, which is derived from down-blending 17.4 metric tons of HEU declared excess to defense needs. The AAFS is available to any partner country of the United States if such a partner were to face a critical need for enriched uranium that could not otherwise be met by the commercial market.