• All production and dependent-system changes are governed by a change-management policy and tracked in a change-management system, reviewed and authorized by a Change Advisory Board (CAB) on a regular cadence.
• Change types are formally defined — standard, emergency, and recurring (pre-approved) — each with documented submission, approval, and review requirements; emergency changes require prompt documentation and retroactive CAB approval.
• Changes are scheduled against a master change calendar with published blackout/freeze periods, and infrastructure is provisioned through Infrastructure-as-Code for consistent, auditable deployments.

Framework Alignment: NIST CSF PR.PS; CIS Control 4; SOC 1 Type II; GDPR Art. 32; ISO 27001:2022 A.8.32, A.8.9