Operational Change Management to Prevent Failures.

Table of Contents

In process industries, change is a constant. The incorporation of new equipment, the modification of procedures, the replacement of materials, the updating of control systems, or even changes in organizational structure form part of the natural evolution of operations. However, when these modifications are not evaluated and managed systematically, they can alter design conditions, introduce new risks, and compromise asset integrity, increasing the likelihood of incidents with consequences for people, the environment, and business continuity.

In this context, Operational Change Management or Management of Change (MOC) has consolidated itself as an essential practice for preventing integrity failures and strengthening process safety. More than a regulatory requirement, it constitutes a management mechanism that allows for identifying, evaluating, and controlling the risks associated with any modification prior to its implementation. This article analyzes the importance of Operational Change Management, its fundamental elements, and best practices for protecting asset integrity in increasingly complex and dynamic industrial environments.

What is operational change management (MOC)?

Operational Change Management, known internationally as Management of Change (MOC), is a systematic process through which organizations identify, evaluate, approve, implement, and document changes that can affect safety, asset integrity, operational performance, or compliance with legal and regulatory requirements. Its main objective is to guarantee that every modification is analyzed prior to its execution, so that potential risks are identified and controlled in a timely manner.

This approach stems from a simple, yet highly important premise: no change is completely harmless. Even modifications that seem minor, such as replacing a material with an equivalent one, changing a supplier of critical components, updating control software, or modifying an operating procedure, can generate unforeseen effects on operating conditions, equipment reliability, or process safety.

It is important to differentiate Operational Change Management from routine maintenance activities or normal facility operations. While routine activities are performed under previously evaluated and documented conditions, MOC is applied when a modification has the potential to alter the design, operation, or existing risk level. In these cases, conducting a prior evaluation is indispensable to determine the technical, operational, and safety implications before authorizing implementation.

Changes that typically require a formal Change Management process can be classified into different categories:

Technological changes: incorporation or replacement of equipment, materials, control systems, instrumentation, or inspection technologies.
Process changes: modification of operating parameters such as pressure, temperature, flow rates, fluid composition, or sequence of operations.
Organizational changes: restructuring of roles, changes in responsibilities, or onboarding of new contractors.
Procedural changes: updating of operating procedures, work instructions, or maintenance plans.
Software and automation changes: modifications in SCADA systems, PLCs, control algorithms, or digital platforms supporting operations.

Change Management maintains a close relationship with operational risk management, since each modification represents a potential source of new hazards or changes in the probability and consequences of previously identified risks. Therefore, an effective MOC process incorporates risk assessment tools that allow for determining necessary control measures before launching the change.

In sectors such as oil and gas, petrochemicals, power generation, mining, and manufacturing, numerous incident studies have shown that a significant proportion of integrity failures originate from changes that were not properly evaluated. Consequently, Operational Change Management today constitutes one of the pillars of process safety and asset management, contributing to preserving facility reliability, protecting people, and ensuring operational continuity.

The following video will help you gain a better insight into operational change management and its importance. Source: RedRisks.

How a poorly managed change can affect integrity

Integrity failures rarely occur spontaneously. In most cases, they are the result of a chain of decisions, omissions, or modifications that alter the conditions under which assets or processes were designed. When a change is implemented without an adequate assessment of its risks and impacts, it can introduce vulnerabilities that remain hidden until an incident materializes.

The integrity of an industrial asset depends on keeping its components, materials, operating conditions, and procedures within the limits for which they were designed. Any modification that alters these conditions can affect its ability to operate safely and reliably. Therefore, Operational Change Management does not seek to prevent modifications, but rather to ensure that they are carried out in a controlled manner and with full awareness of their potential consequences.

A few examples illustrate how a seemingly simple change can compromise the integrity of a facility:

Material substitution: replacing a pipe or fitting with another of similar specifications, but with lower corrosion resistance or chemical incompatibility, can accelerate degradation mechanisms and reduce the system’s service life.
Modification of operating parameters: increasing pressure, temperature, or flow rate to boost production capacity can lead to equipment and vessels operating outside their design conditions, increasing the risk of mechanical failures.
Change of supplier for critical components: using lower-quality valves, gaskets, or instruments, or those with different specifications, can affect system reliability and lead to leaks or premature failures.
Updating automation systems: a modification in control system software or PLC logic can alter operating sequences, inhibit alarms, or modify automatic responses to abnormal conditions.
Changes in operating or maintenance procedures: reducing inspection frequencies, modifying maintenance methods, or eliminating activities deemed “non-critical” can foster the occurrence of failures that are not detected in a timely manner.
Organizational changes: reassigning responsibilities, onboarding new personnel without adequate training, or contracting external companies can affect the safe execution of operations if there is no proper knowledge management.

These examples show that an un-evaluated change can alter the risk profile of a facility without the organization being fully aware of it. The consequences can manifest as leaks, loss of containment, accelerated corrosion, structural failures, fires, explosions, environmental damage, or prolonged production interruptions.

Various investigations into industrial accidents have concluded that a significant portion of major incidents had modifications carried out without a formal Change Management process as a contributing factor. This demonstrates that the risk lies not only in the change itself, but in the absence of a systematic analysis that allows identifying its effects on asset integrity and process safety.

Key elements of an effective change management process

The effectiveness of an Operational Change Management process does not depend solely on having a documented procedure. It requires a structured methodology to comprehensively evaluate each modification before implementation, involving different areas of the organization and ensuring all risks have been properly identified and controlled.

Although each company adapts the process to its needs and regulatory requirements, fundamental elements exist that constitute internationally recognized best practices.

Identification and description of the change

Every Change Management process begins with a clear definition of the proposed modification. It is necessary to establish what will be changed, the technical justification, the intended objectives, and which systems, equipment, processes, or people could be affected.

Proper characterization of the change prevents ambiguous interpretations and serves as the foundation for subsequent evaluation and approval stages.

Risk and impact assessment

Once the change is identified, a systematic analysis of the risks that could arise from its implementation must be conducted. This evaluation must consider not only technical aspects, but also potential effects on human safety, asset integrity, the environment, operational continuity, and legal compliance.

Depending on the complexity of the change, tools such as risk assessment, HAZOP, What-If, failure mode and effects analysis (FMEA), or other recognized methodologies can be used to identify hazards and define control measures.

Multidisciplinary technical review

Operational changes typically affect different areas of the organization, so their evaluation should not rely solely on a single discipline. The joint participation of professionals from engineering, operations, maintenance, inspection, mechanical integrity, process safety, quality, and environment allows for identifying risks that might go unnoticed from a narrow perspective.

A multidisciplinary review fosters more robust decisions and reduces the likelihood of introducing vulnerabilities into the system.

Updating documented information

Every approved change must be reflected in a timely manner in the technical and operational documentation of the organization. This includes operating procedures, maintenance manuals, drawings, piping and instrumentation diagrams (P&ID), technical specifications, risk matrices, inspection programs, and any other document related to asset operation.

Keeping outdated information constitutes a major source of operational errors and can compromise the effectiveness of the management system.

Training and communication of the change

The implementation of a change will only be successful if the people involved in the operation fully understand its implications. Therefore, it is essential to communicate modifications in a timely manner and train personnel involved on new procedures, risks, controls, and responsibilities.

Proper knowledge management reduces the probability of human error and facilitates a safe transition to new operating conditions.

Verification and authorization prior to startup

Before the change goes into operation, it must be verified that all planned actions have been successfully completed. This stage includes validating physical modifications, executing functional tests, updating documentation, training personnel, and implementing the control measures defined during the risk assessment.

Only once these aspects are confirmed should startup of the change be formally authorized.

Follow-up and lessons learned

Change Management does not conclude with the implementation of the modification. Post-implementation monitoring is recommended to verify that obtained results match expectations and that no unforeseen risks or effects have emerged.

Documenting lessons learned and sharing them within the organization strengthens the culture of continuous improvement and helps optimize future change processes.

Together, these elements transform Operational Change Management into a preventive process that maintains asset integrity, reduces risk exposure, and ensures that modifications necessary for business evolution are implemented in a safe, controlled manner aligned with operational performance goals.

Best practices to strengthen integrity through change management

Implementing an Operational Change Management procedure is an important step, but it does not in itself guarantee the reduction of risks associated with modifications. For this process to yield effective results, it must be integrated into the organizational culture and form part of the asset management, process safety, and continuous improvement strategy. The following practices have proven decisive in strengthening the integrity of industrial facilities.

Integrating change management with risk management

Every change must be analyzed from a risk perspective. This involves evaluating how the modification can affect safety, reliability, operational performance, and business continuity. Integration with risk management methodologies, such as those proposed by ISO 31000, facilitates hazard identification and control implementation before the change is executed.

Aligning MOC with asset management

Change Management must be closely linked with asset management systems based on ISO 55001, since any modification can affect the lifecycle, performance, and reliability of physical assets. This integration allows decisions regarding changes to consider not only immediate impacts, but also their effects on maintenance, inspection, service life, and total cost of ownership.

Fostering multidisciplinary participation

Decisions related to operational changes should not rely exclusively on a single technical department. Participation by specialists in operations, engineering, maintenance, inspection, mechanical integrity, process safety, quality, and environment allows evaluating the change from multiple perspectives and minimizes the chance of overlooking relevant risks.

Training personnel and strengthening the culture of change

People constitute one of the most important factors for the success of any Change Management process. Training employees on the importance of MOC, their responsibilities, and the risks associated with uncontrolled modifications strengthens the culture of prevention and promotes greater operational discipline. An organization where personnel understand that every change must be evaluated before execution is less prone to suffering incidents related to integrity failures.

Monitoring performance through key performance indicators (KPIs)

The effectiveness of the Change Management process must also be evaluated through performance indicators. Some KPIs that can be used include:

Percentage of changes executed following the MOC procedure.
Average approval time for changes.
Number of changes implemented without formal authorization.
Percentage of corrective actions derived from changes implemented in a timely manner.
Number of incidents associated with unmanaged changes.

These indicators allow for identifying improvement opportunities and strengthening process performance.

Conducting audits and periodic reviews

Internal audits represent an effective tool to verify compliance with the Change Management procedure and evaluate the effectiveness of established controls. Likewise, periodic reviews of the process allow for incorporating lessons learned, updating technical criteria, and adapting to new regulatory or technological requirements.

Leveraging digital technologies

Digital transformation is driving a new generation of tools for Change Management. Electronic approval platforms, automated workflows, integrated asset management systems, and artificial intelligence-based solutions make it possible to streamline the process, improve traceability, and reduce the risk of errors stemming from manual information management.

Ultimately, effective Change Management should not be understood as an administrative formality or a paper exercise. It constitutes a strategic process that protects asset integrity, reduces risk exposure, and ensures that organizations evolve safely, sustainably, and in alignment with their operational goals.

Conclusions

Operational Change Management is one of the most effective tools for preventing integrity failures in industrial facilities. In an environment where technological, operational, and organizational modifications are inevitable, implementing a structured process to identify, evaluate, and control risks associated with each change is essential to preserve human safety, asset reliability, and business continuity. Experience shows that many integrity failures are not a result of the change itself, but rather the absence of a formal process to understand and manage its implications prior to implementation.

Beyond meeting regulatory requirements, Change Management must be embraced as a strategic practice integrated with risk management, asset management, and process safety. Organizations that promote a culture where every modification is analyzed using technical criteria, backed by multidisciplinary participation, and supported by digital tools will be better prepared to face the challenges of an ever-evolving industry. In this context, properly managing change not only reduces the likelihood of incidents, but also strengthens organizational resilience and contributes to the sustainable performance of operations.

References

Occupational Safety and Health Administration. (2024). 29 CFR 1910.119 – Process Safety Management of Highly Hazardous Chemicals. Washington, D.C., USA.
Center for Chemical Process Safety. (2018). Guidelines for Management of Change for Process Safety. Hoboken, NJ: John Wiley & Sons.
American Petroleum Institute. (2015). API Recommended Practice 1173: Pipeline Safety Management Systems. Washington, D.C., USA.
International Organization for Standardization. (2024). ISO 55001:2024 Asset Management,Management Systems, Requirements. Geneva, Switzerland