According to the three lines of defense model, the responsibility for managing risk and controls resides with the operational management, which forms the first line of defense. The operational management is the function that owns and manages risk as part of their accountability for achieving objectives. They are responsible for identifying, assessing, mitigating, and reportingon risks and controls within their areas ofoperation. They are also responsible for implementing and maintaining effective internal controls and ensuring compliance with policies, standards, and regulations.