Requires an access control policy and supporting procedures to be written, approved, issued to the personnel who must apply them, owned by a named official, and reviewed and reissued on a defined frequency and after defined trigger events, with the scope, owner, audience and review cadence all set by the organization.
NIST SP 800-53 Rev 5 AC-1 is one control. If you already hold one of the frameworks below, a reviewed crosswalk already says how much of NIST SP 800-53 Rev 5 your existing evidence covers. Hold ISO 27001:2022 and 163 of 300 NIST SP 800-53 Rev 5 controls already carry evidence.
Each report names every control your existing framework evidences, every one it does not, the reasoning behind each claim, and the claims that were argued against and rejected. 342 were rejected on the ISO 27001:2022 pair alone.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.