Guidance for the latest schema will be provided here in the near future. Since then, the Address Content Subgroup of the Address Subcommittee of the FGDC has compiled content requirements for the NAD, and the NAD is in the process of migrating and transitioning to a new schema to align with these content requirements. That schema was loosely based on the National Emergency Number Association (NENA) Next Generation 9-1-1 address standard and the Federal Geographic Data Committee (FGDC) Address Data Content Standard. The NAD has been working from the same schema since 2017. Release 13 of the NAD, containing 75.2 million records, is now available for download from the link at the top left of this page. To learn more about addresses and the National Address Database please visit this StoryMap. To meet this need, USDOT partners with address programs from state, local, and tribal governments to compile their authoritative data into the NAD.

They are also essential for a broad range of government services, including mail delivery, permitting, and school siting. Accurate and up-to-date addresses are critical to transportation safety and are a vital part of Next Generation 9-1-1.

Department of Transportation (USDOT) and its partners from all levels of government recognize the need for a National Address Database (NAD).

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