Why a Systematic Management of Change (MOC) Process Matters in Manufacturing

Data shows that 22% of reliability issues in manufacturing stem from uncontrolled changes—process tweaks, equipment upgrades, and new installations that lack formal oversight. Since the 1960s, this insight has driven the evolution of what was once called Configuration Management into today’s comprehensive Management of Change (MOC) framework, which now covers not only equipment but also procedures, process steps, and administrative adjustments.

A robust MOC program embeds its principles, policies, and practices into a company’s culture. Implementing such a system is a strategic investment, not an unnecessary burden, and offers clear, tangible benefits. Here are the four primary reasons to adopt a systematic MOC process:

MOC Prevents Accidents
With heightened global focus on safety and environmental stewardship, regulators demand that manufacturers identify and eliminate root causes of incidents. Uncontrolled changes often introduce latent hazards that slip through ad‑hoc risk reviews. A formal MOC process forces every change to be evaluated, documented, and monitored, ensuring that potential dangers are addressed before they can manifest as accidents.

MOC Enhances Asset Reliability
Asset performance is a linchpin of product quality. Unplanned changes can lead to improper operation, obsolete or inadequate maintenance procedures, and insufficient operator training—all of which shorten component life cycles and elevate risk. By mandating a structured review of every change, MOC preserves the integrity of equipment, supports continuous improvement, and protects the reliability of the entire manufacturing line.

MOC Guarantees Traceability of Changes
Industry standards increasingly require transparent change histories. OSHA 1910.119, for example, mandates that any process alteration be fully evaluated for its impact on safety and operational procedures. A meticulous MOC record‑keeping system satisfies these compliance obligations and provides a reliable audit trail that can be revisited whenever a change needs to be re‑evaluated or reversed.

MOC Ensures Evaluation of Alternatives
Changes are often made in reaction to perceived opportunities—such as a temporary throughput boost—without considering downstream effects. A systematic MOC process forces stakeholders to assess alternatives, weigh risks, and verify that the change truly benefits the system. This disciplined approach can prevent the “new normal” from becoming a costly legacy.

In practice, MOC covers all forms of change—physical, procedural, or informational—to assets, SOPs, drawings, BOMs, and more. While the exact review depth may vary by organization, the overarching principle remains: every change, except a simple replacement of like parts, should undergo the MOC cycle.

As manufacturing governance evolves toward greater rigor, systematic MOC programs are no longer optional—they are essential for any organization aspiring to world‑class excellence.

References

1. Moore, R. Making Common Sense Common Practice (third edition), Elsevier Butterworth‑Heinemann; (May 21, 2004).
2. OSHA 3132, Process Safety Management, U.S. Department of Labor, Occupational Safety and Health Administration.
3. OSHA 1910.119, Process Safety Management of Highly Hazardous Chemicals, U.S. Department of Labor, Occupational Safety and Health Administration.

This article appeared in the July edition of Life Cycle Engineering’s newsletter, RxToday.

About the author:
Carl March is a seasoned professional in maintenance, reliability engineering, and systems modeling. Holding a bachelor’s degree in mechanical engineering and a master’s in automotive systems engineering, Carl is a licensed Professional Engineer (PE), Certified Reliability Engineer (CRE) from the American Society for Quality, and Certified Maintenance & Reliability Professional (CMRP) from the Society of Maintenance and Reliability Professionals. As a reliability subject matter expert at Life Cycle Engineering, he shares expertise in Reliability‑Centered Maintenance, Total Productive Maintenance, root cause analysis, and Reliability Excellence to help clients worldwide achieve manufacturing distinction. Contact Carl at cmarch@LCE.com.