622.55—Notice of assessment of civil money penalty.
        
        (5) 
         The right of the institution or person being assessed to a formal hearing to challenge the assessment;
    
    
        
        (6) 
         That failure to request a hearing constitutes a waiver of the opportunity for a hearing and the notice of assessment will constitute a final and unappealable order; and
    
    
    
        
        (b) Service.
         The notice of assessment may be served upon the institution or person being assessed by personal service or by certified mail with a return receipt to the institution's or the person's last known address. Such service constitutes issuance of the notice.