(a) All documents submitted in a proceeding shall be served on all parties. The original and two copies of each document shall be submitted for filing. Filings shall be made with the administrative law judge or other appropriate Departmental official before whom the proceeding is pending. With respect to exhibits and transcripts of testimony, only originals need be filed.

(b) Service upon a party or amicus shall be made by delivering one copy of each document requiring service in person or by certified mail, return receipt requested, properly addressed with postage prepaid, to the party or amicus or his attorney, or designated representative. Filing will be made in person or by certified mail, return receipt requested, to the administrative law judge or other appropriate Departmental official before whom the proceeding is pending.

(c) The date of filing or of service shall be the day when the matter is deposited in the U.S. mail or is delivered in person.