Management of Change (MOC) EPCM Services

Tundra Engineering provides structured Management of Change (MOC) services to help oil and gas operators implement facility modifications safely, efficiently, and in full regulatory compliance. Our multidisciplinary teams support ongoing maintenance projects and small enhancement initiatives while ensuring process safety, documentation control, and operational continuity.

Facility changes—whether minor equipment updates or broader process modifications—can introduce unintended risk if not properly managed. Tundra Engineering applies disciplined MOC workflows that align engineering review, risk assessment, and field execution within a controlled framework. 

As part of Tundra Engineering’s EPCM delivery model, we help clients maintain visibility and control throughout the change lifecycle. Our team also provides PLC programming and industrial automation for oil & gas and industrial facilities across North America, including control systems and SCADA integration.

Structured MOC Review & Risk Assessment

Effective Management of Change begins with a clear understanding of the proposed modification and its potential impact on safety, operability, and regulatory compliance. Tundra Engineering performs structured technical reviews to evaluate process, mechanical, instrumentation, and control system implications.

Our MOC support typically includes:

  • Change scope definition and screening
  • Process and safety impact review
  • P&ID and documentation updates
  • Control logic and safeguarding checks
  • Field constructability evaluation

This disciplined approach helps prevent unintended consequences while supporting safe and efficient facility upgrades.

Support for Maintenance & Enhancement Projects

Many MOC activities are driven by routine maintenance work, equipment replacements, or incremental facility improvements. Tundra Engineering provides practical engineering support for both ongoing maintenance programs and small enhancement projects where rapid but controlled implementation is required.

Our teams work closely with operations personnel, contractors, and project stakeholders to ensure changes are properly reviewed, documented, and executed without disrupting production. Where environmental considerations are involved, clients often coordinate MOC activities with Environmental Consulting support to maintain regulatory alignment.

EPCM Integration & Field Execution

Within our EPCM framework, Tundra Engineering connects MOC reviews directly to detailed engineering, procurement coordination, and construction management. This integrated approach ensures approved changes are fully engineered and implemented rather than remaining administrative exercises.

We support brownfield modifications, debottlenecking initiatives, reliability upgrades, and compliance-driven changes across upstream and midstream oil and gas facilities. Our focus remains on maintaining safe operations while enabling efficient facility evolution.

Compliance, Documentation & Lifecycle Control

Proper documentation and traceability are essential to effective Management of Change. Tundra Engineering maintains structured MOC records, drawing updates, and approval workflows that support audits and long-term asset management.

By combining rigorous engineering review with disciplined project controls, we help operators reduce operational risk, maintain regulatory compliance, and implement changes with confidence across the full facility lifecycle.

What is Management of Change (MOC) in oil and gas?

Management of Change is a structured process used to evaluate and control modifications to equipment, processes, or operating procedures. It ensures facility changes are reviewed for safety, regulatory compliance, and operational impact before implementation.

When is an MOC review required?

An MOC is typically required for equipment replacements, process modifications, control system updates, or small enhancement projects that could affect facility safety or performance. Early review helps prevent unintended operational risks.

How does EPCM support MOC implementation?

The EPCM model integrates engineering review, procurement coordination, and construction management within one framework. This approach ensures approved changes are properly engineered, documented, and safely executed in operating facilities.