This document discusses Pemex Refining's implementation of a process-centric integrity management system to govern its $1 billion, 5-year integrity program. The system focuses on metric management, risk management, project management, data management, and document management to improve transparency, control, and measurement of the program. Key aspects include using an exposure-resistance-mitigation model for risk-based project selection and priority-setting, as well as process-based approaches to project management, data collection and reporting, and document management. Continuous improvement of processes and metrics is also emphasized.