Management Systems

Marathon employs risk-based management systems designed around the characteristic "plan-do-check-adjust" framework to oversee HES&S performance throughout our business operations.

Marathon business units apply either the internally developed integrated Global Performance System (GPS) or the American Chemistry Council's Responsible Care Management System^®. Both systems are aligned with international standards and formalize a best-practices approach to HES&S processes. Risk assessment and risk management are fundamental to Marathon's management systems and are integrated into business and operating planning cycles and decision-making processes.

To drive further consistency across the Company, Marathon complements our management systems with performance-based HES&S standards that provide expectations for organizational performance. Standards are periodically reviewed and updated to reflect changes in laws or regulations, incorporate recommendations arising from audits and incident investigations, and to continually improve performance.

Tiered Audit Program

Marathon relies upon a tiered audit program to maintain regulatory compliance and adherence to Company standards. Tier I and II audits focus on compliance. Tier III audits, which involve a third-party expert, test HES&S management system implementation. Business units develop plans to address audit findings. Plans are tracked through completion of corrective actions and lessons learned are shared across organizations. Key findings and trends from these audits are communicated to Marathon's HES&S leadership and senior management.