This study sought to determine the operational effects of Republic Act No. 9184 on the procurement practices of Jose Rizal Memorial State University (JRMSU). Specifically, it assessed the implementation of RA 9184 and its Implementing Rules and Regulations (IRR) in terms of procurement policies, procedures, and compliance requirements, and determined their relationship with procurement practices in terms of efficiency, transparency, timeliness, and accountability. The study employed a quantitative descriptive-survey research design. Data were gathered from sixty-five (65) respondents directly involved in procurement activities across the five campuses of JRMSU during Academic Year 2025–2026. The study was conducted within the context of the institutional transition toward Republic Act No. 12009. Findings revealed that the implementation of RA 9184 and its IRR at JRMSU was assessed as “Highly Implemented” in terms of procurement policies, procedures, and compliance requirements. Procurement practices likewise demonstrated high levels of efficiency, transparency, timeliness, and accountability. The use of the Philippine Government Electronic Procurement System (PhilGEPS), adherence to procurement planning, and compliance with documentary requirements contributed significantly to these positive assessments. The statistical analysis revealed that there was a significant positive relationship between the implementation of RA 9184 and procurement practices. Institutional factors such as procurement personnel competence, availability of resources, organizational structure, and institutional capacity were found to exert partial intervening effects on procurement performance. Among the variables examined, the implementation of RA 9184 emerged as the strongest predictor of effective procurement practices. The study concludes that RA 9184 played a significant role in institutionalizing transparent, accountable, and efficient procurement practices within JRMSU. The findings provide valuable institutional insights that may inform procurement policy implementation and capacity-building initiatives during the transition to RA 12009.