(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.