Code of Federal Regulations Title 37. Patents, Trademarks, and Copyrights § 37.205.13 Complaints served on the Register of Copyrights pursuant to 17 U.S.C. 411(a)

When an action has been instituted pursuant to 17 U.S.C. 411(a) for infringement of the copyright of a work for which registration has been refused, notice of the institution of the action and a copy of the complaint must be served on the Register of Copyrights by sending such documents by   1 to the General Counsel of the Copyright Office to the General Counsel of the Copyright Office via email to 411filings@copyright.gov. The notice must be in the form of a letter, as an attached file, that is clearly identified as a 411(a) notice. Both the letter and the email's subject line should state:  “Section 411(a) Notice to the Register of Copyrights.” Attachments must be submitted in Portable Document Format (PDF), assembled in an orderly form, and uploaded as individual electronic files (i.e., not .zip files). Attachments to a single email should be no greater than 20 MB in total. The files must be viewable, contain embedded fonts, and be free from any access restrictions (such as those implemented through digital rights management) that prevent the viewing and examination of the file. If submission of a notice via email is not feasible, please contact the Office of the General Counsel by telephone during normal business hours at 202–707–8380. In compliance with Fed. R. Civ. P. Sec. 4(i), a notice of the institution of the action and a copy of the complaint must also be served on both the United States Attorney for the district in which the action is brought and the United States Department of Justice, directed to the Attorney General, Attn:  Director of Intellectual Property Staff, Civil Division, Department of Justice, Washington, DC 20530.

 So in original;  see 85 FR 10604.