Collective Proceedings in Competition Cases

Abstract This chapter examines the Anti-Trust Class Action Regime, introduced in the UK on 1 October 2015, which facilitates private actions for anti-competitive conduct in the Competition Appeal Tribunal (CAT). It outlines the regime’s sector-specific approach and the certification process required for collective proceedings to proceed. Key features of the regime include opt-in or opt-out class formation, aggregate damages, and the suspension of limitation periods for class members. The chapter also discusses the status of class members, who are regarded as represented non-parties, with the representative claimant assuming case management responsibilities. Finally, it concludes that the Anti-Trust Class Action Regime significantly shifts litigious rights from class members to the representative claimant, with profound implications for defendants' rights.