Following our November notice, we are again reminding all online "service providers" to re-register  with the U.S. Copyright Office's new DMCA agent directory. Any service provider that has designated an agent with the Office already prior to December 1, 2016, must re-submit a new designation electronically using the new online registration system by December 31, 2017, in order to avoid loss of DMCA safe harbor protection (17 USC 512). The new flat fee is now only $6 per registration (compared to the $105 previously). However, registrations will now expire after three years, and online service providers need to renew their registrations before the time of expiration in order to maintain the safe harbor protection. To familiarize users with the new system, the Copyright Office has released a number of tutorial videos: https://www.copyright.gov/rulemaking/onlinesp/NPR/index.html.