The Antitrust Division’s civil enforcement program protects and promotes competition on behalf of the American people. The Antitrust Division has statutory authority to challenge mergers and acquisitions that may lessen competition or tend to create a monopoly, to enforce laws that protect competition from anticompetitive agreement and monopolies, and to recover damages for antitrust violations on behalf of federal agencies. In addition, the program works with the Federal Trade Commission to administer and enforce the Hart-Scott-Rodino Act, which requires mergers above a certain size to be filed with the Division and FTC before they can be completed. The Task Force on Healthcare Monopolies and Collusion identifies and addresses pressing antitrust problems in health care markets. More information on the civil enforcement program's mission and structure, including contact information, is available at: https://www.justice.gov/atr/antitrust-division-leadership-section-and-office-directory#sections.

[updated January 2025]