The Uniform Antitrust Pre-Merger Notification Act of 2025 is designed to improve the efficiency of merger reviews in the District of Columbia by mandating that individuals or entities filing a Hart-Scott-Rodino (HSR) form with the federal government also submit the same materials to the District's Attorney General, provided they have a principal place of business in the District or meet a specified sales threshold. This requirement aims to eliminate the need for subpoenas, thereby reducing costs and delays in the review process. The act also imposes confidentiality restrictions on the submitted information, ensuring it is only shared with relevant federal agencies and other state attorneys general who have adopted similar confidentiality measures.

Furthermore, the act establishes civil penalties for noncompliance, allowing the Attorney General to impose fines of up to $10,000 per day for violations of the filing requirements. It emphasizes the need for uniformity in application across jurisdictions, promoting consistency in antitrust enforcement. The act does not impose additional burdens beyond federal requirements and does not preempt existing state-specific pre-merger reporting obligations. Overall, the Uniform Antitrust Pre-Merger Notification Act of 2025 aims to streamline the merger review process while safeguarding sensitive business information and enhancing coordination between state and federal authorities.