CA-5: Plan of Action and Milestones

From NIST's SP800-53:

a. Develop a plan of action and milestones for the system to document the planned remediation actions of the organization to correct weaknesses or deficiencies noted during the assessment of the controls and to reduce or eliminate known vulnerabilities in the system; and b. Update existing plan of action and milestones [Assignment: organization-defined frequency] based on the findings from control assessments, independent audits or reviews, and continuous monitoring activities.