(a) The U.S. Registered Pilot, designated “respondent” in a suspension or revocation hearing or “applicant” in a refusal-to-renew-registration hearing, may be represented before the Administrative Law Judge by any person who is a member in good standing of the bar of the highest court of any State, Commonwealth, Territory, Possession, or the District of Columbia, upon filing with the Administrative Law Judge a written declaration that he is currently qualified and is authorized to represent the particular party in whose behalf he acts.

(b) Whenever a person acting in a representative capacity appears in person or signs a paper in practice before the Administrative Law Judge, Director, Commandant, the Administrator, or other official of the U.S. Coast Guard, his personal appearance or signature shall constitute a representation that under the provisions of this subpart and applicable law he is authorized and qualified to represent the particular person in whose behalf he acts.

(c) When any Registered Pilot is represented by an attorney at law, any notice or other written communication required or permitted to be given to or by such a U.S. Registered Pilot shall be given to or by such attorney. If a U.S. Registered Pilot is represented by more than one attorney, service by or upon any one of such attorneys shall be sufficient.