(a) Identification. All exhibits offered in evidence shall be
numbered and marked with a designation identifying the party or
intervenor by whom the exhibit is offered.
(b) Exchange of exhibits. When written exhibits are offered in
evidence, one copy must be furnished to each of the parties at the
hearing, and one copy to the administrative law judge, unless the
parties previously have been furnished with copies or the administrative
law judge directs otherwise. If the administrative law judge has not
fixed a time for the exchange of exhibits the parties shall exchange
copies of exhibits at the earliest practicable time, preferably before
the hearing, or at the latest at the commencement of the hearing.
(c) Substitution of copies for original exhibits. The administrative
law judge may permit a party to withdraw original documents offered in
evidence and substitute true copies in lieu thereof.