The U.S. Chamber of Commerce, along with several business groups, has initiated a legal challenge against the Federal Trade Commission (FTC) regarding new merger filing notification requirements. This lawsuit aims to block a rule that mandates companies involved in mergers and acquisitions to provide significantly more information to U.S. antitrust agencies. The FTC and the Justice Department assert that these changes are necessary to address existing information gaps in the merger review process. The legal action was filed on January 13, 2025, and has sparked discussions about the implications of the new rules on business practices.