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''Arizona v. California'' is a set of United States Supreme Court cases, all dealing with disputes over water distribution from the Colorado River between the states of Arizona and California. It also covers the amount of water that the State of Nevada receives from the river as well. When a dispute arises between two states, the case is filed for original jurisdiction with the United States Supreme Court. This is one of the very limited circumstances where the court acts as original jurisdiction; that is, as a trial court. In all other cases the court acts as the highest level appellate court in the United States. The cases involved were all named ''Arizona v. California'', and were decided in 1931, 1934, 1936, 1963, 1964, 1968, 1979, 1983, 1984, and 2000. The original decision, , specified the amount of water to which Arizona was entitled under the Colorado River Compact of 1921. Since then, the case has been relitigated several times because of Arizona's claims of California using more water than it is entitled. * : Arizona argued that the Colorado River Compact was unconstitutional. * : Arizona requested that the Supreme Court: * *specify an amount of Colorado River water for Arizona's use * *limit the amount allotted to California * : The court specified the amount of water to which each state in the Colorado River Compact was entitled. * : The court adjusted the amounts of water specified in 373 US 546. * : The court adjusted its previous decree. * : The court adjusted the specified amounts of water for all parties to the case. * : The court issued a decree regarding unadjudicated rights of Indian tribes to Colorado River water. * : The court adjusted its previous decree. * : The court adjusted the specified amounts of water for several parties to the case. In summary, as long as at least of water is available from the Colorado River, California is allocated ; Nevada, ; and Arizona, the remainder. If more water is available, California is entitled to 50% of the water from the Colorado River, Arizona to 46%, and Nevada to 4%. If less water is available, the Secretary of the Interior must allocate the water according to various formulas (which were the subjects of the court cases) to ensure that each state receives a specified amount, with California receiving an absolute fixed maximum of per year (547 U.S. 157). Some of the adjustments involved rights of the U.S. Government with respect to supplying water to Indian tribes pursuant to Executive Orders signed by the President of the United States as far back as 1907. The 1962 oral arguments set a modern record for the Supreme Court: 16 hours over four days.〔http://www.buffalonews.com/wire-feeds/24-hour-national-news/article780975.ece〕 ==See also== * ''Wyoming v. Colorado'' * List of United States Supreme Court cases: volume 283, volume 292, volume 298, volume 373, volume 376, volume 383, volume 439, volume 460, volume 466, volume 531 * List of United States Supreme Court cases * Lists of United States Supreme Court cases by volume 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Arizona v. California」の詳細全文を読む スポンサード リンク
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