Management of Change
Management of Change is the controlled process used to assess, approve, implement, document, and review changes that could affect safety, quality, environment, reliability, or compliance.
What this term means in maintenance
Management of Change is the controlled process used to assess, approve, implement, document, and review changes that could affect safety, quality, environment, reliability, or compliance.
Changes requiring control
Examples include:
- Equipment modification
- Material substitution
- Software change
- Setpoint change
- Process change
- Temporary bypass
- Layout change
- Procedure change
- Supplier change
- Maintenance-strategy change
Practical example
A discontinued pump seal is replaced with a different material. Engineering, maintenance, operations, safety, and quality review compatibility before approval.
MOC stages
A process may include:
- Change request
- Technical review
- Risk assessment
- Approval
- Documentation update
- Training
- Implementation
- Testing
- Pre-startup review
- Closure
Common mistake
Treating a like-for-like replacement as automatically equivalent without checking specification, material, software, or operating differences.
Related concepts
Related maintenance terms
Keep exploring connected CMMS, reliability, and maintenance planning terms.
Pre-Startup Safety Review
A Pre-Startup Safety Review confirms that equipment and process changes are complete, safe, documented, and ready before startup.
Document Control
Document control is the process used to approve, issue, revise, distribute, review, and withdraw procedures, instructions, drawings, and other controlled information.
Commissioning
Commissioning is the controlled process of verifying that new or modified equipment is installed correctly, performs as intended, and is ready for safe operation.
Management of Change FAQs
- What does MOC stand for?
MOC stands for Management of Change.
- What changes may require MOC?
Equipment, software, process, material, setpoint, supplier, layout, and procedure changes.
- Why is MOC important for maintenance?
Maintenance changes can affect safety, quality, reliability, compliance, and documentation.