Treaty with the United Mexican States

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.

Source

43 USC § 620o


Scoping language

None identified, default scope is assumed to be the parent (chapter 12B) of this section.
Is this correct? or