§ 277g. Agreements to correct pollution of Rio Grande
(a)
 In general 
The Secretary of State, acting through the United States Commissioner, International Boundary and Water Commission, United States and Mexico (hereafter in sections 
277g to 
277g–3 of this title referred to as the “Commissioner”), is authorized to conclude agreements with the appropriate representative of the Ministry of Foreign Relations of Mexico for the purpose of correcting the international problem of pollution of the Rio Grande caused by discharge of raw and inadequately treated sewage and other wastes into such river from the border cities including but not limited to Ciudad Acuna, Nuevo Laredo, and Reynosa, Mexico, and Del Rio, Laredo, and Hidalgo, Texas.
(b)
 Content of agreements 
               	 	
               	 	
Agreements concluded under subsection (a) of this section should consist of recommendations to the Governments of the United States and Mexico of measures to protect the health and welfare of persons along the Rio Grande from the effects of pollution, including—
(2)
estimates of the cost of plans, construction, operation, and maintenance of the facilities referred to in paragraph (1);
(3)
formulas for the initial division between the United States and Mexico of the cost of plans, constructions, operation, and maintenance of the facilities referred to in paragraph (1);