As used in this chapter—

The terms “Colorado River Basin”, “Colorado River Compact”, “Colorado River System”, “Lee Ferry”, “States of the Upper Division”, “Upper Basin”, and “domestic use” shall have the meaning ascribed to them in article II of the Upper Colorado River Basin Compact;

The term “States of the Upper Colorado River Basin” shall mean the States of Arizona, Colorado, New Mexico, Utah, and Wyoming;

The term “Upper Colorado River Basin” shall have the same meaning as the term “Upper Basin”;

The term “Upper Colorado River Basin Compact” shall mean that certain compact executed on October 11, 1948 by commissioners representing the States of Arizona, Colorado, New Mexico, Utah, and Wyoming, and consented to by the Congress of the United States of America by Act of April 6, 1949 (63 Stat. 31);

The term “Rio Grande Compact” shall mean that certain compact executed on March 18, 1938, by commissioners representing the States of Colorado, New Mexico, and Texas and consented to by the Congress of the United States of America by Act of May 31, 1939 (53 Stat. 785);

The term “Treaty with the United Mexican States” shall mean that certain treaty between the United States of America and the United Mexican States, signed at Washington, District of Columbia, February 3, 1944, relating to the utilization of the waters of the Colorado River and other rivers, as amended and supplemented by the protocol dated November 14, 1944, and the understandings recited in the Senate resolution of April 18, 1945, advising and consenting to ratification thereof.