If you were moved out of CSRS or CSRS Offset due to a qualifying retirement coverage error and were placed in FERS, you may elect CSRS Offset or remain in FERS. If you were moved out of CSRS or CSRS Offset due to a qualifying retirement coverage error and were placed in Social Security-Only, you may elect CSRS Offset or remain in Social Security-Only. This is summarized in the following chart:
    
    
        
            
                
                
                
            
            
                | CSRS | 
                FERS | 
                CSRS Offset or FERS. | 
            
            
                | CSRS Offset | 
                FERS | 
            
            
                | CSRS | 
                Social Security-Only | 
                CSRS Offset or Social Security-Only. | 
            
            
                | CSRS Offset | 
                Social Security-Only. |