303.511—An organization or individual may file a complaint.
        
        (a) General.
         An individual or organization may file a written signed complaint under  § 303.510. The complaint must include—
    
    
        
        (1) 
         A statement that the State has violated a requirement of part C of the Act or the regulations in this part; and
    
    
    
        
        (b) Limitations.
         The alleged violation must have occurred not more than one year before the date that the complaint is received by the public agency unless a longer period is reasonable because—
    
    
    
        
        (2) 
         The complainant is requesting reimbursement or corrective action for a violation that occurred not more than three years before the date on which the complaint is received by the public agency.