Passed in 1982, the Nuclear Waste Policy Act (NWPA) was an effort to establish an explicit statutory basis for the Department of Energy (DOE) to dispose of the nation's most highly radioactive nuclear waste. The NWPA requires DOE to remove spent nuclear fuel from commercial nuclear power plants, in exchange for a fee, and transport it to a permanent geologic repository or an interim storage facility before permanent disposal. Defense-related high-level waste is to go into the same repository. In order to achieve this goal, and in an effort to mitigate the political difficulties of imposing a federal nuclear waste facility on a single community, Congress attempted to establish an objective, scientifically based multi-stage statutory process for selecting the eventual site of the nation's new permanent geologic repository. Congress amended the NWPA's site selection process in 1987, however, and designated Yucca Mountain, Nevada, as the sole candidate site for the repository by terminating site specific activities at all other sites. The Obama Administration, in conjunction with DOE, has taken three important steps directed toward terminating the Yucca Mountain project. First, the Administration's FY2011, FY2012, and FY2013 budget proposals eliminated all funding for the Yucca Mountain project. Second, the President and Secretary of Energy Steven Chu established a Blue Ribbon Commission to consider alternative solutions to the nation's nuclear waste challenge. Third, and most controversial, DOE has attempted to terminate the Nuclear Regulatory Commission's (NRC's) Yucca Mountain licensing proceeding by seeking to withdraw the license application for the Yucca Mountain facility. DOE's withdrawal motion triggered strong opposition from a number of concerned parties. The states of Washington and South Carolina-each awaiting cleanup and removal of defense-related nuclear waste at the Hanford and Savannah River Sites, respectively-have played significant roles in the legal challenge to the license withdrawal. Claims challenging the Secretary's authority to withdraw the Yucca Mountain license application were filed with both the NRC and the U.S. Court of Appeals for the District of Columbia (D.C. Circuit). Although DOE's motion to withdraw the Yucca Mountain license application was denied by the NRC's Atomic Safety and Licensing Board, the NRC suspended the Yucca Mountain licensing proceeding in 2011 due to budgetary limitations. The D.C. Circuit has since dismissed a challenge to DOE's authority to withdraw the license application and heard oral arguments on claims challenging NRC's authority to terminate the licensing proceeding. While the result of the ongoing dispute over the legality of the attempted termination of the Yucca Mountain program remains uncertain, congressional action could have a significant impact on the fate of the Yucca Mountain facility. A number of leading House Republicans have voiced strong opposition to shutting down the Yucca Mountain facility. Consequently, the Yucca Mountain dispute will not only be contested before the NRC and the D.C. Circuit, but also in Congress.