State of Arizona, complainant v. State of California, Palo Verde Irrigation District, Imperial Irrigation District, Coachella Valley County Water District, Metropolitan Water District of Southern California, City of Los Angeles, California, City of San Diego, California, and County of San Diego, California, defendants : the United States of America and State of Nevada, interveners : State of Utah and State of New Mexico, impleaded defendants : report / Simon H. Rifkind, special master

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25 waived the Compact requirement for seven-state approval and ratified the same to become effective upon approval by at least six of the states and consent of the United States.85 Utah's 1925 act of ratification was repealed in 1927.88 By Section 13 of the Act of December 21, 1928,8T commonly known as the Boulder Canyon Project Act, Congress gave its consent to the Colorado River Compact, waiving the Compact's requirement of seven-state approval, and provided that "this approval shall become effective when the State of California and at least five of the other states mentioned, shall have approved or may hereafter approve said Compact as aforesaid and shall consent to such waiver, as herein provided." Section 4(a) of the Act provides that the Act should not take effect and no authority should be exercised thereunder unless and until (1) all of the States of Arizona, California, Colorado, Nevada, New Mexico, Utah and Wyoming had ratified the Compact, or (2) if all of said states failed to ratify the Compact within six months from the passage of the Act, until the same should be ratified by six of such states, including California, and California should agree to certain limitations upon the aggregate annual consumptive use (diversions less returns to the River) of water of and from the Colorado River for use in the State of California. Ratification by Arizona did not occur within the six-month period specified in Section 4(a) of the Project Act. By an act of March 4,1929,88 the State of California again waived the Compact's requirement of seven-state approval and provided that the Compact should become binding and "Special Master's Ex. No. 4, The Hoover Dam Documents, appendices 221-226, Ariz. Exs. 17, 19, 21 and 25, "Act of January 19, 1927 (Utah Laws 1927, p. 1). 8745 Stat. 1057. "Special Master's Ex. No. 4, The Hoover Dam Documents, appendix 227, Ariz. Ex. 13.