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A'''''LVF (Location Validation Function)''''' is a functional element in an [[NGCS (NG9-1-1 Core Services)|NGCS]] that is a [[LoST (Location to Service Translation)|LoST]] protocol server where civic location information is validated against the authoritative GIS database information. A civic address is considered valid if it can be located within the database uniquely, is suitable to provide an accurate route for an emergency call and adequate and specific enough to direct responders to the right location.
{{RelevantNENADocs}}
*[https://www.nena.org/?page=/ProvGISECRFLVF NENA-STA-005, NENA Standards for the Provisioning and Maintenance of GIS data to ECRFECRFs and LVFs NENA‑STA‑005]
*[https://www.nena.org/page/i3_Stage3 NENA-STA-010, Detailed Functional and Interface Standards for the NENA i3 Solution]
[https://www.nena.org/?NG911_PSAP_REQ NENA/APCO NG9-1-1 PSAP Requirements NENA/APCO-REQ-001]
[[Category:Glossary]]
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