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U.S. Department of Labor | |
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| Occupational Safety & Health Administration | ||||||
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SIC Description for 4432
Description for 4432: Freight Transportation on the Great Lakes-St. Lawrence Seaway |
| Division E: Transportation, Communications, Electric, Gas, And Sanitary Services |
| Major Group 44: Water Transportation |
Industry Group 443: Freight Transportation On The Great Lakes-st. |
4432 Freight Transportation on the Great Lakes-St. Lawrence Seaway |
Establishments primarily engaged in the transportation of freight on the Great Lakes and the St. Lawrence Seaway, either between United States ports or between United States and Canadian ports.
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