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| American Association of State Highway & Transportation Officials |
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| AASHTO is a nonprofit, nonpartisan association representing highway and transportation departments in the 50 states, the District of Columbia, and Puerto Rico. It represents all five transportation modes: air, highways, public transportation, rail ,and water. Its primary goal is to foster the development, operation, and maintenance of an integrated national transportation system. |
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| American Association of State Highway & Transportation Officials |
| Washington, District of Columbia |
| USA |
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