37 CFR § 301.2 - Official addresses.
All claims, pleadings, and general correspondence intended for the Copyright Royalty Board and not submitted by electronic means through the electronic filing system (“eCRB”) must be addressed as follows:
(a) If sent by mail (including overnight delivery using United States Postal Service Express Mail), the envelope should be addressed to: Copyright Royalty Board, P.O. Box 70977, Southwest Station, Washington, DC 20024-0977.
(b) If hand-delivered by a private party, the envelope must be brought to the Copyright Office Public Information Office, Room LM-401 in the James Madison Memorial Building, and be addressed as follows: Copyright Royalty Board, Library of Congress, James Madison Memorial Building, 101 Independence Avenue SE., Washington, DC 20559-6000.
(c) If hand-delivered by a commercial courier (excluding Federal Express, United Parcel Service and similar courier services), the envelope must be delivered to the Congressional Courier Acceptance Site (CCAS) located at Second and D Street NE., Washington, DC, addressed as follows: Copyright Royalty Board, Library of Congress, James Madison Memorial Building, 101 Independence Avenue SE., Washington, DC 20559-6000.
(d) Subject to paragraph (f) of this section, if sent by electronic mail, to crb@loc.gov.
(e) Correspondence and filings for the Copyright Royalty Board may not be delivered by means of:
(1) Overnight delivery services such as Federal Express, United Parcel Service, etc.; or
(2) Fax.
(f) General correspondence for the Copyright Royalty Board may be sent by electronic mail. Claimants or Parties must not send any claims, pleadings, or other filings to the Copyright Royalty Board by electronic mail without specific, advance authorization of the Copyright Royalty Judges.