[2/27/24, 11:00 AM EST] CSRC has been experiencing technical issues. If you are unable to access a CSRC page or resource, or get a 503 error, please try reloading the page several times--it may help to wait a few minutes before trying again. We apologize for the inconvenience, and hope to have a solution in place next week.
One of the primary identifiers on the PIV Card for physical access control, as required by FIPS 201. The FASC-N is a fixed length (25 byte) data object that is specified in [NIST SP 800-73-4] and included in several data objects on a PIV Card.