This Allen & Overy website compares the principal rules applying in the main EU Member States and the US relating to three key areas of antitrust law: first, potential liability for individuals following a breach of the antitrust rules; second, leniency regimes which allow "whistleblowing" companies to reduce or even be immune from fines; and third, the extent to which private actions for damages can be brought as a result of breach of the competition laws.