The U.S. Department of Transportation’s (USDOT) Bureau of Transportation Statistics (BTS) today released its winter 2026 update to the National Transportation Atlas Database (NTAD), a set of nationwide geographic databases of transportation facilities, networks, and associated infrastructure.

The updated layers in this release include:

•    119th Congressional Districts –attributes updated weekly;
•    Alternative Fueling Stations – updated daily;
•    Aviation Facilities – updated monthly;
•    Runways – updated monthly;
•    Dams – updated weekly;
•    Navigational Facilities – updated monthly;
•    Inland Electronic Navigational Charts;
•    Nonattainment Areas;
•    National Parks;
•    Waterway Locks;
•    Adjusted Urban Areas;
•    Bikeshare Scooter Systems;
•    Amtrak Stations;
•    Metropolitan Planning Organizations (MPOs);
•    Military Installations;
•    National Transit Map Routes;
•    National Transit Map Stops;
•    National Transit Map Agencies;
•    North American Rail Network Lines;
•    North American Rail Network Nodes;
•    Rail Yards;
•    Railroad Grade Crossings;

About the National Transportation Atlas Database

NTAD data is available for download in the following formats: File Geodatabase, Shapefile, GeoJSON, comma-separated values (CSV), Keyhole Markup Language (KML), and more through the BTS Geospatial Data Catalog. Additionally, Web Feature Services (WFS) are available for NTAD datasets. Download our public catalog offering and locate the ‘URL’ column to find a dataset’s web service URL. Vector Tile services are available for select NTAD datasets and are best used for cartographic and visualization purposes, and may be found in the NTAD Vector Tile Group.

BTS now uses a dynamic NTAD publication cycle, with updated data released throughout the year as they become available from their respective government agencies. Follow BTS on X, LinkedIn, and Instagram or subscribe to email updates for announcements of additional dataset releases throughout the year. 

Contacts
Media: BTSNews@dot.gov. 
Technical: Dominic Menegus: (202) 306-1587 or ntad@dot.gov.