| Great Lakes St. Lawrence Seaway System | | Canadian-US binational waterway transportation system. Information about the governing authorities, ports and other facilities, navigation, operations, and related topics. |
| Political Database of the Americas | | Links to constitutions, laws, and government and political sites for all independent nations of the Western Hemisphere, maintained by the Center for Latin American Studies at Georgetown University in Washington, DC. In English, Spanish Portuguese and French. |
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