This Monday, the Supreme Court unanimously ruled in Fourth Estate Public Benefit Corp. v. Wall-Street.com, LLC, 586 U.S. ____ (Mar. 4, 2019), that a copyright owner may commence an infringement suit only when the Copyright Office determines whether or not to register a copyright, as opposed to when the owner submits an application and fee for registration. The widely-followed case resolves a simple question, but has far-reaching practical implications for U.S. copyright litigation.