International Boundary and Water Commission

The International Boundary and Water Commission (IBWC, Spanish: Comisión Internacional de Límites y Aguas, CILA) is the international organization that applies the rules for determining the location of the international boundary between the United States and Mexico, as established under the Convention of November 12, 1884. The IBWC was created in 1889 as the International Boundary Commission by the Convention of 1889 between the United States and Mexico, and it was given its present name under a 1944 treaty.

Source: Wikipedia — International Boundary and Water Commission (CC BY-SA 4.0)