Multiemployer pension plans, created by collective bargaining agreements including more than one employer, cover more than 10 million workers and retirees, and are insured by the Pension Benefit Guaranty Corporation (PBGC). In recent years, as a result of investment market declines, employers withdrawing from plans, and demographic challenges, many multiemployer plans have had large funding shortfalls and face an uncertain future. This book examines the actions that multiemployer plans in the weakest condition have taken to improve their funding levels and the options available to address PFBC's impending funding crisis and enhance the multiemployer insurance program's future financial stability.