This assignment in the Philippines was commissioned by the United Nations Development Programme (UNDP) and funded by the United Kingdom’s Foreign and Commonwealth Office with the aim of enhancing transparency, fairness, and competition in public procurement. The initiative also focused on promoting integrity and accountability in line with international best practice methodologies and literature, including frameworks such as the Methodology for Assessing Procurement Systems (MAPS), the Support for Improvement in Governance and Management (SIGMA) principles, the Organisation for Economic Co-operation and Development (OECD) standards, and the Committee of Sponsoring Organizations of the Treadway Commission (COSO) principles. To achieve these objectives, a comprehensive Internal Control Framework was meticulously designed and implemented to address and mitigate integrity risks within the Philippine public procurement ecosystem. The framework was developed in collaboration with three pilot agencies: the Department of Health, the Department of Education, and the Department of Local Government and Interior. Through this targeted approach, the project sought to bolster the capacity of these agencies to adhere to best practices in procurement, thereby fostering a more robust and resilient system that not only reduces the potential for corruption but also enhances public trust in government processes. The implementation of this Internal Control Framework is expected to lead to significant improvements in procurement outcomes, ensuring that public resources are utilized efficiently and effectively for the benefit of all citizens.