Official US Government Icon

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you're on a federal government site.

Secure Site Icon

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

The latest general information on the Coronavirus Disease 2019 (COVID-19) is available on Coronavirus.gov. For USDOT specific COVID-19 resources, please visit our page.

National Address Database

NAD Map

The U.S. Department of Transportation (USDOT) and its partners from all levels of government recognize the need for a National Address Database (NAD).  Accurate and up-to-date addresses are critical to transportation safety and are a vital part of Next Generation 9-1-1.  They are also essential for a broad range of government services, including mail delivery, permitting, and school siting.

Based on a minimum content approach that was a key recommendation from the NAD Summit, a schema as developed as part of the NAD Pilot.  To date, USDOT has received address data from more than 30 state and local government partners and has transformed it into the NAD schema.

Release 3 of the NAD is now available.

If you represent a state or local government and would like to include your address points in the NAD, please contact us at nad@dot.gov.

Last updated: Thursday, August 29, 2019