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Start Over You searched for: Resource Class Datasets Remove constraint Resource Class: Datasets Subject National Highway System Remove constraint Subject: National Highway System Creator John A. Volpe National Transportation Systems Center (U.S.) Remove constraint Creator: John A. Volpe National Transportation Systems Center (U.S.)

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2012. Miller, David, John A. Volpe National Transportation Systems Center (U.S.), and United States. Bureau of Transportation Statistics. This polyline shapefile depicts FMCSA Hazardous Material Routes that were developed using the 2004 First Edition Topologically Integrated Geographi... United States. Bureau of Transportation Statistics.