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2025 Database File Dictionary

Published by Federal Transit Administration | Department of Transportation | Catalog Last Checked: October 15, 2026 at 08:48 PM | Dataset Last Updated: October 14, 2026
The data dictionary defines terms found on NTD Reporting Forms and identifies the 2025 Database File in which they are included. Please note that this does not include terms in the 2025 Data Tables and Time Series files. Each of those files includes its own data dictionary.

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