facilities that should be constructed, operated, and maintained in each country;

estimates of the cost of plans, construction, operation, and maintenance of the facilities referred to in paragraph (1);

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);

a method for review and adjustment of the formulas referred to in paragraph (3) at intervals of five years which recognizes that such initial formulas should not be used as a precedent in their subsequent review and adjustment; and

dates for the beginning and completion of construction of the facilities referred to in paragraph (1).