Uniform Antitrust Pre-Merger Notification Act of 2025

The Uniform Antitrust Pre-Merger Notification Act of 2025 requires businesses that file federal antitrust merger notifications (under the Hart-Scott-Rodino Act) to also submit the same documents to the District of Columbia Attorney General simultaneously. It applies to businesses with their principal place of business in DC or those with at least 20% of their annual sales in DC related to the transaction. The bill mandates electronic filing of merger documents, adds confidentiality protections restricting sharing to federal agencies and other adopting states, and authorizes civil penalties for noncompliance. This streamlines DC’s review process by eliminating the need for costly subpoenas while reducing delays for businesses.