Donated annual leave transferred to a leave recipient under this subpart may not be—
    
    
    
        
        (b) 
         Recredited to a former employee who is reemployed by a Federal agency; or
     
    
        
        (c) 
         Used to establish initial eligibility for immediate retirement or acquire eligibility to continue health benefits into retirement under 5 U.S.C. 6302(g).