Early in 2002, the Secretary of Energy recommended approval of Yucca Mountain for development of a repository based on the multiple factors as required in the Nuclear Waste Policy Act of 1987 and, after review, President George W. Bush submitted the recommendation to Congress for its approval. Nevada exercised its state veto in April 2002, but the veto was overridden by both houses of Congress by mid-July 2002. In 2004, the U.S. Court of Appeals for the District of Columbia Circuit upheld a challenge by Nevada, ruling that EPA's 10,000-year compliance period for isolation of radioactive waste was not consistent with National Academy of Sciences (NAS) recommendations and was too short. The NAS report had recommended standards be set for the time of peak risk, which might approach a period of one million years. By limiting the compliance time to 10,000 years, EPA did not respect a statutory requirement that it develop standards consistent with NAS recommendations. The EPA subsequently revised the standards to extend out to 1 million years. A license application was submitted in the summer of 2008 and is presently under review by the Nuclear Regulatory Commission.