The Federal Employing Agency (FEA) plays a crucial role in the CA-2a form process. The FEA is responsible for reporting any work-related injuries or illnesses to the OWCP and for completing Part B of the CA-2a form. The FEA should provide accurate and complete information regarding the employee's work duties and conditions at the time of the recurrence. This information is necessary for the OWCP to determine if the recurrence is work-related and to process the claim accordingly.