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<br />001946
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<br />the Rio Grande (Rio Bravo) and the Colorado River shall hereafter be known as the International Boundary and Water
<br />Commission, United States and Mexico, which shall Continue to function for the entire period during which the present
<br />Treaty shall continue in force. Accordingly, the term of the Convention of March 1, 1889 shall be considered to be
<br />indefinitely extended, and the Convention of November 21, 1900 between the United States and Mexico regarding that
<br />Convention shall be Considered completely terminated. The application of the present Treaty, the regulation and exercise
<br />of the rights and obligations which the two Governments assume thereunder, and the settlement of all disputes to which its
<br />observance and execution may give rise are hereby entrusted to the International Boundary and Water Commission, which
<br />shall function in conformity with the powers and limitations set forth in this Treaty. The Commission shall in all respects
<br />have the status of an international body, and shall consist of a United States Section and a Mexican Section. The head of
<br />each Section shall be an Engineer Commissioner. Wherever there are provisions in this Treaty for joint action or joint
<br />agreement by the two Governments, or for the furnishing of reports, studies or plans to the two Governments, or similar
<br />provisions, it shall be understood that the particular matter in question shall be handled by or through the Department of
<br />State of the United States and the Ministry of Foreign Relations of Mexico. The Commission or either of its two Sections
<br />may employ such assistants and engineering and legal advisers as it may deem necessary. Each Government shall accord
<br />diplomatic status to the Commissioner, designated by the other Government. The Commissioner, two principal engineers,
<br />a legal adviser, and a secretary, designated by each Government as members of its Section of the Commission, shall be
<br />entitled in the territory of the other country to the privileges and immunities appertaining to diplomatic officers. The
<br />Commission and its personnel may freely carry out their observations, studies and field work in the territory of either
<br />country. The jurisdiction of the Commission shall extend to the limitrophe parts of the Rio Grande (Rio Bravo) and the
<br />Colorado River, to the land boundary between the two countries, and to works located upon their common boundary, each
<br />Section of the Commission retaining jurisdiction over that part of the works located within the limits of its own country.
<br />Neither Section shall assume jurisdiction or control over works located within the limits of the country of the other without
<br />the express consent of the Government of the latter. The works constructed, acquired or used in fulfillment of the
<br />provisions of this Treaty and located wholly within the territorial limits of either country, although these works may be
<br />international in character, shall remain, except as herein otherwise specifically provided, under the exclusive jurisdiction
<br />and control of the Section of the Commission in whose country the works may be situated. The duties and powers vested in
<br />the Commission by this Treaty shall be in addition to those vested in the International Boundary Commission by the
<br />Convention of March 1, 1889 and other pertinent treaties and agreements in force between the two countries except as the
<br />provisions of any of them may be modified by the present Treaty.
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<br />Each Government shall bear the expenses incurred in the maintenance of its Section of the Commission. The joint
<br />expenses, which may be incurred as agreed upon by the Commission, shall be borne equally by the two Governments.
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<br />Article 3
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<br />In matters in which the Commission may be called upon to make provision for the joint use of international waters, the
<br />following order of preferences shall serve as a guide:
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<br />1. Domestic and municipal uses.
<br />2. Agriculture and stockraising.
<br />3. Electric power.
<br />4. Other industrial uses.
<br />5. Navigation.
<br />6. Fishing and hunting.
<br />7. Any other beneficial uses which may be determined by the Commission,
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<br />All of the foregoing uses shall be subject to any sanitary measures or works which may be mutually agreed upon by the two
<br />Governments, which hereby agree to give preferential attention to the solution of all border sanitation problems.
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<br />n -Rio Grande (Rio Bravo)
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<br />Article 4
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<br />The waters of the Rio Grande (Rio Bravo) between Fort Qnitman, Texas and the Gulf of Mexico are hereby allotted to the
<br />two countries in the following manner:
<br />
<br />A. To Mexico:
<br />(a) All of the waters reaching the main channel of the Rio Grande (Rio Bravo) from the San Juan and Alamo Rivers,
<br />including the return flow from the lands irrigated from the latter two rivers.
<br />(b) One-half of the flow in the main channel of the Rio Grande (Rio Bravo) below the lowest major international storage
<br />dam, so far as said flow is not specifically allotted under this Treaty to either of the two countries.
<br />(c) Two-thirds of the flow reaching the main channel ofthe Rio Grande (Rio Bravo) from the Conchos, San Diego, San
<br />Rodrigo, Escondido and Salado Rivers and the Las Vacas Arroyo, subject to the provisions of subparagraph (c) of
<br />Paragraph B ofthis Article.
<br />(d) One-half of all other flows not otherwise allotted by this Article occurring in the main channel of the Rio Grande (Rio
<br />Bravo), including the contributions from all the unmeasured tributaries, which are those not named in this Article,
<br />between Fort Quitman and the lowest major international storage dam.
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<br />B. To the United States:
<br />(a) All of the waters reaching the main channel of the Rio Grande (Rio Bravo) from the Pecos and Devils Rivers, Good-
<br />enough Spring, and Alamito, Terlingua, San Felipe and Pinto Creeks.
<br />(b) One-half of the flow in the main channel of the Rio Grande (Rio Bravo) below the lowest major international storage
<br />dam, so far as said flow is not specifically allotted under this Treaty to either of the two countries.
<br />(c) One-third ofthe flow reaching the main channel of the Rio Grande (Rio Bravo) from the Conchos, San Diego, San
<br />Rodrigo, Escondido and Salado Rivers and the Las Vacas Arroyo, provided that this third shall not be less, as an average
<br />amount in cycles of fIVe consecutive years, than 350,000 acre-feet (431,721,000 cubic meters) annually. The United States
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