Plan of Action and Milestones (POA&M)

Every line answers the same questions: what is weak, how it was found, what the fix is, who owns it, and when it closes. In the Federal Risk and Authorization Management Program (FedRAMP), the POA&M travels with the authorization package alongside the System Security Plan (SSP) and stays live through continuous-monitoring reporting after authorization. The Cybersecurity Maturity Model Certification (CMMC) program uses it more narrowly: only certain lower-weight requirements may remain open on a POA&M at assessment time, and only for a defined closeout window.

A POA&M with entries is not a failing grade — it is evidence that the vulnerability-management loop actually runs. Authorizing officials and assessors read it the way an engineer reads a bug tracker: do items have credible owners and dates, do higher-risk findings move faster than routine ones, is anything ancient being quietly carried forward? An empty register on a system of any complexity raises more suspicion than a managed one, because it usually means findings are handled somewhere off the books.

The register is a commitment device, and the commitments recur: new scan findings land every month, milestones come due, and slipped dates need documented justification rather than silent edits. That cadence is exactly what contractor engineering teams drop first under delivery pressure, which is why Agency’s vCISO for government contractors pairs named security leadership with engineers who keep the POA&M current between assessments — the same discipline as a commercial remediation plan, held to a federal standard of documentation.