DMCA Safe Harbor

The DMCA safe harbor refers to the liability limitations in Section 512 of the United States copyright law, enacted as part of the Digital Millennium Copyright Act of 1998. These provisions shield qualifying online service providers, such as Reddit, from monetary liability for copyright infringement committed by their users, provided the provider meets a set of statutory conditions.

For a platform that stores material uploaded at users' direction, the key provision is the notice-and-takedown system: on receiving a valid infringement notice, the provider must act expeditiously to remove or disable access to the material in question. To remain within the safe harbor a provider must also designate an agent to receive notices, adopt and reasonably implement a policy for terminating repeat infringers, and not have actual knowledge of infringement or a direct financial benefit from it where it has the right and ability to control it. The law also gives users a counter-notification procedure to contest mistaken removals. The safe harbor matters because it is what makes it practical for Reddit to host enormous volumes of user content without being treated as the author of every potentially infringing post.