BTS’ for-hire freight shipment index (TSI) in May 2019 was 0.2% lower than in May 2018.
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NATIONAL TRANSPORTATION LIBRARY (NTL)
The National Transportation Library is a repository for Department of Transportation information, providing library services and serving as a portal for transportation data.
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STATISTICAL POLICIES
As a principal statistical agency, BTS adheres to a number of standards and practices to assure the quality and comparability of its statistics.