557.5—Improperly filed petitions.
        
        (a) 
         A petition that is not addressed as specified in  § 557.4, but that meets the other requirements of that section, will  be treated as a properly filed petition, received as of the time it is discovered and identified.
    
    
        
        (b) 
         A document that fails to conform to one or more of the requirements of  § 557.4(a) (1) through (5) will not be treated as a petition under this part. Such a document will be treated according to the existing correspondence and other procedures of the NHTSA, and any information contained in it will be considered at the discretion of the Administrator.