The final rule from the Department of Labor expands access to "closed" multiple employer plans (MEPs) by allowing more groups and associations to sponsor them. Specifically, the rule allows local chambers of commerce, members in the same trade or line of business, professional employer organizations (PEOs), and businesses in the same state or city to band together to form closed MEPs. Closed MEPs allow members to pool resources for negotiating lower costs and share fiduciary responsibilities. The rule clarifies existing guidance and creates a new pathway for small businesses to provide retirement plans through association participation.