Resources for NDI Users

At a glance

  • Access the National Death Index (NDI) User's Guide
  • Find related materials to help you submit an application for NDI data.
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Before you apply

Review the National Death Index (NDI) resources on this page, the basic NDI eligibility criteria, and the step-by-step NDI application instructions.

User's Guide

The NDI User's Guide will walk you through the complete NDI process, from preparing your data files to receiving and assessing your results.

NDI User Guide
Learn more about how to access and use NDI.

Additional materials