Icologiq Knowledge · Process
Management of Change
A structured process for evaluating and controlling safety, operational and compliance risks before significant technical, organizational or process changes are implemented.
MOC
Also known as:
MoC, management of change process
At a glance
Type
Process
Topic
Change/HSE
Applies to
Tank Terminals & Chemicals
Current version
Status
Last reviewed
September 14, 2026
Definition
Management of Change is used in process-safety and operational environments to ensure that proposed changes are reviewed before implementation. The review considers hazards, affected procedures, responsibilities, training, documentation, approvals and other controls needed to manage the change safely.
Why it matters
Management of Change matters because changes in hazardous operations can introduce new risks even when the change appears routine. A structured MOC process helps ensure that technical, procedural, organizational and safety impacts are assessed before the change is implemented.
Describe what will change, why it is needed, whether it is temporary or permanent and which operations, systems or people may be affected.
Define the proposed change
1
Use Impact Assessment, Risk Assessment and relevant technical input to identify hazards, affected barriers, obligations and dependent controls.
Assess safety, quality and compliance impact
2
Confirm that responsible decision-makers accept the change and required safeguards before implementation.
Approve with conditions
3
Update procedures, drawings, permits, competence requirements or other controlled information needed for the changed state.
Prepare documents, training and controls
4
Execute the approved work and confirm that safeguards, interfaces and required actions are in place before normal operation.
Implement and verify the change
5
Evaluate whether the change achieved its objective without creating uncontrolled risk, then retain evidence and close outstanding actions.
Review performance and close
6
Process explained
Managing change where operational risk matters
Management of Change applies structured risk control to technical, organizational or procedural change. The process should make the proposed change, hazards, approvals, dependent actions and post-change verification visible before the new state becomes normal operations.
A structured assessment used to identify hazards or uncertainties, estimate their risk and determine whether controls or further action are required.
Risk Assessment
Process
· Risk
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