CMMC Level 2 · Incident Response

CMMC Level 2 3.6.3: Incident Response Testing

3.6.3 — Incident Response Testing — is one of the 110 CMMC Level 2 requirements. This page gives the exact requirement text, every assessment objective, and what evidence an assessor will ask for.

Last reviewed: October 18, 2026

What this requirement asks

Test the organizational incident response capability.

This is a CMMC Level 2 requirement in the Incident Response family, drawn from NIST SP 800-171 Rev. 2. An assessor evaluates it objective by objective — every objective below must be supported by evidence, not just described in a policy.

Assessment objectives (1)

  • 3.6.3[a] — the incident response capability is tested

What an assessor examines

Examine:

  • Incident response policy
  • contingency planning policy
  • procedures addressing incident response testing
  • procedures addressing contingency plan testing
  • incident response testing material
  • incident response test results
  • incident response test plan
  • incident response plan
  • contingency plan
  • system security plan
  • other relevant documents or records

Interview:

  • Personnel with incident response testing responsibilities
  • personnel with information security responsibilities
  • personnel with responsibilities for testing plans related to incident response

Test:

  • Mechanisms and processes for incident response

Evidence that defends it

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Check your readiness

Score this requirement against your own environment with the Level 2 self-assessment checklist, or estimate your SPRS score with the free CMMC compliance tool. Self-reported answers are planning signals only — they do not establish a verified or assessor-accepted result.

Frequently asked questions

Is 3.6.3 required for CMMC Level 2?

Yes. 3.6.3 (Incident Response Testing) is one of the 110 Level 2 requirements from NIST SP 800-171 Rev. 2. Every assessment objective must be met with supporting evidence.

What evidence satisfies 3.6.3?

Upload tabletop report, lessons learned

Further reading

Related Athena pages and authoritative external references.

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