Resource provided by UW-Madison Robinson Map Library.
[The current extent of site structure address points in the WI NG911 GIS data standards schema, as of March 2026. This schema is nearly identical to the NENA NG911 Standard. This dataset is not yet complete, and will be added to as more SSAP data across the state is critical error free and made available. This dataset is updated on a weekly basis.] NG911 address points are precise, GIS-based, site-specific, or structural locations (latitude/longitude) required to accurately route emergency calls to the correct PSAP and dispatch responders. These points, alongside road centerlines and service boundaries, form the foundation of NENA i3 standards, ensuring precise location validation.