At any time after you enter into a lower tier covered transaction with a person at a higher tier, you must provide immediate written notice to that person if you learn either that—
    
    
        
        (a) 
         You failed to disclose information earlier, as required by  § 85.355; or
     
    
        
        (b) 
         Due to changed circumstances, you or any of the principals for the transaction now meet any of the criteria in  § 85.355.
     
    
        
            Code of Federal Regulations
        
        (Authority: E.O. 12549 (3 CFR, 1986 Comp., p. 189); E.O 12689 (3 CFR, 1989 Comp., p. 235); 
                20 U.S.C. 1082, 1094, 1221e-3 and 3474
            ; and Sec. 2455, Pub. L. 103-355, 108 Stat. 3243 at 3327)