United States Department of Labor Field Assistance Bulletin: Missing Participants
A plan fiduciary must make reasonable efforts to find missing participants and distribute benefits on their behalf. They must also be able to demonstrate compliance with ERISA's fiduciary standards for all decisions made and demonstrate compliance using paper or electronic records. Click here to read this FAB regarding how fiduciaries can fulfill their obligations under ERISA to locate missing participants and properly distribute the participants' account balances. Source: Dol.gov.