In order to qualify for the Digital Millennium Copyright Act's safe harbors for online service providers, the following actions must be taken immediately.
This Interim Designation must be signed by an appropriate officer or representative of the service provider. The signature must be accompanied by the printed or typewritten name and title of the person signing the Interim Designation, and the date of the signature.
The Interim Designation may be filed with the Public Information Office of the Copyright Office, Room LM-401, James Madison Building, Library of Congress, 101 Independence Ave., SE, Washington, D.C. It also can be mailed to Copyright GC/I&R, PO Box 70400, Southwest Station, Washington, D.C. 20024. The designation must be accompanied by a filing fee of $20.00. The interim regulation does not state to whom the check should be payable, but other Copyright Office fees are payable to the Register of Copyrights.
If the information in the Interim Designation changes -- if, for example, you replace your agent -- you need to file an amended Interim Designation with the Copyright Office, with another $20.00 fee.
Each Interim Designation can apply to only one service provider. The Copyright Office considers related companies, e.g., parents and subsidiaries, which are also service providers to be separate service providers which must file their own Interim Designations.
Once the Copyright Office issues final regulations (after a notice and comment period), you will have to file another Designation, and the filing fee probably will be higher. Because several months may pass before the Copyright Office promulgates final regulations, you should file an Interim Designation if you wish to qualify for the protection of the DMCA's safe harbors.