CA-1 is the policy control for the Assessment, Authorization and Monitoring family. It asks you to write down how you test controls, who signs off on running a system and how you keep watching afterward.
NIST SP 800-53 Rev 5 binds US federal systems and others through contract. For other organizations it is a reference. Mappings to other frameworks vary, so check any crosswalk before you rely on it.
What the control asks
Develop, document and disseminate to defined personnel or roles an assessment, authorization and monitoring policy covering purpose, scope, roles, responsibilities, management commitment, coordination among teams and compliance, consistent with applicable laws and standards. Add procedures to implement the policy and the CA controls. Designate an official to manage them. Review and update the policy and procedures at a frequency you define and after events you define.
What it means in practice
The policy names who assesses controls (CA-2), who approves operation (CA-6), how information exchanges are approved (CA-3), how weaknesses are tracked (CA-5) and how monitoring runs (CA-7). NIST's guidance says organization level policy is generally preferable and can be part of a general security policy.
Evidence to collect
- The policy and procedures with approval date and version.
- The named owner.
- Proof of distribution.
- Review history inside your stated interval.
Common gaps
- A policy that never mentions authorization or monitoring.
- No owner.
- No review in years.
How to implement it
Write a short policy that points to one procedure per CA control, then calendar the review. See how controls map across frameworks in the demo.
Click through it at your own pace, or open it full screen.
Quick check
Do we need a separate policy document just for CA?
No. NIST's guidance says the content can sit inside a general security policy.
