Maine and Washington have enacted new healthcare premerger notification requirements that mandate filing obligations beyond federal HSR Act compliance. These state-level regulations impose specific thresholds, filing fees, and review periods for healthcare transactions involving private equity, hedge funds, and management services organizations.
United StatesAntitrust/Competition Law
Maine and Washington are the latest states to enact or expand their healthcare-related premerger notification requirements. Maine’s new requirements, set forth in HP 1480 and HP 1481, create new filing obligations, while Washington has expanded its existing healthcare filing regime and added filing fees for certain transactions. These state requirements are in addition to the requirements of the federal HSR Act, which requires parties contemplating deals exceeding certain thresholds to file a premerger notification form with the Federal Trade Commission and the U.S. Department of Justice Antitrust Division.
Maine
HP 1481 becomes effective on July 29, 2026. The law requires healthcare entities filing HSR premerger notifications to concurrently submit a copy of their HSR materials to the Maine Attorney General when: a healthcare entity that is party to the transaction has (a) its principal place of business in Maine or (b) annual revenue in Maine in the most recent
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