104 STAT. 3668 PUBLIC LAW 101-624—NOV. 28, 1990 46 USC app. 1241U. 46 USC app. 1241v. "(4) Amounts of cargo allocated to ports in the Great Lakes port range pursuant to paragraph (3) shall not be exported from a different port range except as necessary to meet United States-flag transportation requirements of sections 901(b) and 901b, in which •case within the same year the Commodity Credit Corporation shall take such steps as are necessary and practicable without detriment to any port range to ensure the export from the Great Lakes port range of an amount of tonnage of commodities referred to in paragraph (3)(A) that is not required to be transported on United Statesflag vessels, that is equal to the amount of tonnage diverted for export from other port ranges. "(5) Any determination of nonavailability of United States-flag vessels resulting from the application of this subsection shall not reduce the gross tonnage of commodities required by sections 901(b) and 901b to be transported on United States-flag vessels.". SEC. 1526. STUDY AND REPORT. (a) STUDY.— The Secretary, in consultation with the Secretary of Agriculture, shall conduct a study on the implementation of this subtitle. The study shall include analysis of— (1) the effects of that implementation on diversions of cargo to and from the Great Lakes port range and any resulting effects on the cost of transporting commodities furnished pursuant to title II of the Agricultural Trade Development and Assistance Act of 1954 (7 U.S.C. 1751 et seq.); and (2) whether the authority to designate vessels as American Great Lakes vessels has increased United States-flag vessel service to Great Lakes ports. (b) REPORT. —Not later than December 31, 1994, the Secretary shall submit a report to the Congress on the findings of the study under subsection (a). SEC. 1527. DEFINITIONS. As used in this subtitle— (1) AMERICAN GREAT LAKES VESSEL. —The term "American Great Lakes vessel" means a vessel which is so designated by the Secretary in accordance with section 1522. (2) GREAT LAKES. — The term "Great Lakes" means Lake Superior; Lake Michigan; Lake Huron; Lake Erie; Lake Ontario; the Saint Lawrence River west of Saint Regis, New York; and their connecting and tributary waters. (3) GREAT LAKES SHIPPING SEASON.— The term "Great Lakes shipping season" means the period of each year during which the Saint Lawrence Seaway is open for navigation by vessels, as declared by the Saint Lawrence Seaway Development Corporation created by the Act of May 13, 1954 (33 U.S.C. 981 et seq.). (4) SECRETARY. — The term "Secretary" means the Secretary of Transportation. Subtitle C—Export Promotion SEC. 1531. AMENDMENT TO THE AGRICULTURAL TRADE ACT OF 1978. The Agricultural Trade Act of 1978 (7 U.S.C. 1761 et seq.) is amended to read as follows:
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