As required by the Nuclear Waste Policy Act of 1982, the U. S. Department of Energy published in June 1985 the Mission Plan for the Civilian Radioactive Waste Management Program. The purpose of that document was to "provide an informational basis sufficient to permit informed decisions to be made in carrying out the programs required under the Act." In preparing the Mission plan, the DOE recognized that this informational base would change over time, requiring the Mission Plant to be revised. The first such revision is this amendment, which has been prepared to apprise the Congress of --