hart–scott–rodino antitrust improvement act
Hart–Scott–Rodino Antitrust Improvement Act. A federal statute, enacted in 1976, that generally strengthens the Justice Department’s antitrust enforcement powers, esp. by requiring firms to give notice to the Federal Trade Commission and the Justice Department of an intent to merge if one of the firms has annual revenues or assets exceeding $100 million, and the acquisition price or value of the acquired firm exceeds $15 million. — Often shortened to Hart–Scott–Rodino Act (abbr. HSR Act).