49 CFR §1104.4

1. (a)Signature of attorney or practitioner. If a party is represented by a practitioner or an attorney, the original of each paper filed should be signed in ink by the practitioner or attorney, whose address should be stated. The signature of a practitioner or attorney constitutes a certification that the representative:
   1. (1)Has read the pleading, document or paper;
   2. (2)Is authorized to file it;
   3. (3)Believes that there is good ground for the document;
   4. (4)Has not interposed the document for delay;
2. (b)Signature by one not authorized to represent others before the Board. The original of each document not signed by a practitioner or attorney must be:
   1. (1)Signed in ink;
   2. (2)Accompanied by the signer's address; and
   3. (3)Verified, if it contains allegations of fact, under oath by the person, in whose behalf it is filed, or by a duly authorized officer of the corporation in whose behalf it is filed. If the pleading is a complaint, at least one complainant must sign and verify the pleading.