(a) Filing. Except as otherwise provided, all documents submitted to the Administrator or a Presiding Officer shall be filed with the Docket Section, Office of the Secretary, Department of Transportation, Room 4107, 400 Seventh Street, SW., Washington, DC 20590. Documents may be filed in person or by mail and shall be deemed filed on the day of filing or mailing.

(b) Caption. Every document shall contain a caption setting forth the name of the action in connection with which it is filed, the docket number, and the title of the document.

(c) Copies. An original and nine (9) copies of all documents shall be filed. Documents may be reproduced by printing or any other process, provided that all copies filed are clear and legible.

(d) Signature. (1) The original of each document filed shall be signed by a representative of record for the party; or in the case of parties not represented, by the party; or by a partner, officer, or regular employee of any corporation, partnership, or association, who files an appearance on behalf of the party.

(2) The act of signing a document constitutes a representation by the signer that the signer has read it; that to the best of the signer's knowledge, information and belief, the statements made in it are true; and that it is not filed for purposes of delay.