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NIST Special Publication 800-63 Digital Identity Guidelines
NEW! Digital Identity Guidelines, Revision 4
NIST Special Publication 800-63, Digital Identity Guidelines, Revision 4 has been published. This resource intends to respond to the changing digital landscape that has emerged since the last major revision of this suite was published by NIST in 2017.
The new guidelines explain the process and technical requirements for meeting digital identity assurance levels for identity proofing, authentication, and federation—including requirements for security and privacy, as well as considerations for improved customer experience of digital identity solutions and technology. There are also many substantial content changes to the entire suite of documents. Read our blog for more details.
See the recording and slides from our August 20, 2025 webinar!
Questions? Send us an email: dig-comments [at] nist.gov.
Past updates
- Second Public Draft of SP 800-63, Revision 4 for Final Review
- Digital Identity Guidelines Webinar Series
- SP 800-63-4 (Pre-Draft) Call for Comments: Digital Identity Guidelines
- Comments in Response to Request for Comments for SP 800-63-4
- NIST Special Publication 800-63-3 Frequently Asked Questions
- Roadmap: NIST Special Publication 800-63-3 Digital Identity Guideline
- NIST SP 800-63-3 Implementation Resources
- Conformance Criteria for SP 800-63A Enrollment and Identity Proofing
- Conformance Criteria for SP 800-63B Authentication and Lifecycle Management
- Conformance Criteria for SP 800-63C Federation and Assertions