What Is ISO 22301? Business Continuity Management System Explained

What a BCMS Is

A BCMS is the set of policies, processes, and capabilities that keep critical activities available within recovery objectives derived from a Business Impact Analysis (BIA). It sits alongside — and often integrates with — an ISO 27001 ISMS.

Clause Map (HLS)

• 4 Context — interested parties, scope, BCMS boundaries
• 5 Leadership — policy, roles, commitment
• 6 Planning — risks, opportunities, continuity objectives
• 7 Support — competence, awareness, communication, documented information
• 8 Operation — BIA, risk assessment, strategies, plans, and 8.5 exercises/testing
• 9 Performance evaluation — monitoring, internal audit, management review
• 10 Improvement — nonconformity, corrective action, continual improvement

Related Artefacts (Not Synonyms)

• BIA — analyses impact of disruption on activities and sets the basis for recovery objectives
• BCP — documented procedures to continue or recover business activities
• DR plan — typically ICT-focused recovery of systems, data, and infrastructure that support the BCP

See also RTO vs RPO vs MTPD — definitions only; numeric targets are organisation-specific from the BIA.

Certification Snapshot

Initial certification uses Stage 1 (documentation readiness) and Stage 2 (implementation). Certificates typically run on a three-year cycle with surveillance audits — the same pattern as other ISO management system standards. Details: process, timeline, and cost drivers.

How CyberSilo Helps

• BCMS programme artefacts — BIA, plans, exercise records — organised in Compliance Standards Automation
• ThreatHawk SIEM / SOAR for detection, response evidence, and ICT continuity telemetry during disruption
• Advisory scoping for certification readiness — contact CyberSilo

Frequently Asked Questions

Is ISO 22301 mandatory?

It is a voluntary international standard. Regulators and customers may require BCMS practices or certification as a contractual or sector expectation.

Does ISO 22301 replace ISO 27001?

No. 22301 is continuity; 27001 is information security. Many organisations run both under shared HLS governance.

What is clause 8.5?

Clause 8.5 covers exercises and testing of business continuity procedures — see our BCP testing guide.

Related ISO 22301 Resources

Hub · vs ISO 27001 · Exercises (8.5) · EU cyber resilience guide