This is the final version of NIST Special Publication (SP) 800-63A Enrollment and Identity Proofing. This document is \referenced by SP 800-63-3 covering the associated topics that had been previously in SP 800-63-2.

The official version of this document is the PDF available at https://doi.org/10.6028/NIST.SP.800-63a. This repository, used for development of the SP 800-63 document suite, is available as a resource for those who prefer to view the documents in HTML form or who wish to view the original Markdown.

Because of differences in Markdown rendering engines, the best place to view the HTML is on the NIST Pages website at https://pages.nist.gov/800-63-3/ rather than the GitHub rendering of the documents.

While this is believed to be a faithful representation of the official PDF documents, NIST would appreciate being informed about any inconsistencies that may be found other than minor formatting differences. These may be reported to dig-comments@nist.gov.