You are here


NAD Schema

The purpose of this document is to lay out the National Address Database (NAD) Schema, including all attribute fields and domains. This schema is in line with the minimum content approach that was devised in the NAD Summit. This schema was developed as part of the NAD Pilot project, and it is anticipated that this schema will evolve over time as participation in the NAD grows.

National Address Database


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.

Updated: Thursday, August 29, 2019
Submit Feedback >