92.51—Later disallowances and adjustments.
         The closeout of a grant does not affect:
    
    
        
        (a) 
         The Federal agency's right to disallow costs and recover funds on the basis of a later audit or other review;
    
    
        
        (b) 
         The grantee's obligation to return any funds due as a result of later refunds, corrections, or other transactions;