Pub. L. 100-685, tit. II, sec. 212

Sec. 212. The Administrator, in coordination with the Secretary of Energy, for the purpose of outer solar system exploration, may request and receive such quantities of nuclear fuel as are necessary only for the specific mission, on terms and at costs as may be agreed upon. Nothing in this section authorizes the providing of such nuclear fuel on those terms for any other purpose or its diversion for any other use.