The Pension Benefit Guaranty Corporation’s (PBGC) recently released final rule updating the agency’s regulations on missing participants in terminated single-employer defined benefit (DB) plans newly extends the program to retirement plans not previously covered. These include most defined contribution (DC) retirement plans, PBGC-covered multiemployer pension plans (MEPPs), and small professional organizations’ DB plans. The final rule applies to plans- other than MEPPs- that terminate on or after January 1, 2018, and gives DC plan sponsors the option to transfer the assets to the PBGC rather than to establish individual retirement accounts at a financial institution for the missing participants.