This paper analyzes the integration of the Committee of Sponsoring Organizations of the Treadway Commission framework into compliance systems for U.S. state agencies that manage federal grants, specifically those that fund social service and community development programs. The objective of the study was to examine how COSO’s foundational principles, widely recognized as the definitive standard for internal control, can be leveraged to enhance the effectiveness and efficiency of risk-based compliance in these complex governmental environments. The study employed a systematic review of extant literature, focusing on the applicability of COSO's five integrated components, Control Environment, Risk Assessment, Control Activities, Information & Communication, and Monitoring Activities, to the specific challenges of federal grant administration. The findings of the study revealed that effective internal control systems are significantly influenced by the control environment, risk assessment processes, and continuous monitoring activities, while information and communication, and control activities, showed a more nuanced relationship within public sector contexts. The result also indicated that the judicious application of COSO principles is essential for robust internal control, particularly within the executive branch of state governments, as evidenced by practical implementations and observed management practices. Furthermore, the analysis underscores the critical role of these internal controls in mitigating the inherent risks associated with federal grant management, thereby ensuring accountability and programmatic integrity. Also, the findings revealed that recurring weaknesses in internal controls within public sector initiatives, particularly in areas like the control environment, necessitate a structured framework for identification and remediation. The study, therefore, concluded that the COSO framework offers a robust conceptual model for enhancing internal control systems within U.S. state agencies, which is crucial for financial transparency and accountability in managing federally funded programs.