This bill allows Michigan small businesses with fewer than 500 employees and qualifying self-employed workers to join nonprofit business associations to buy health insurance as a group. Plans must cover essential benefits like mental health, maternity, preventive care, and dependents, and cannot set rates based on health status or claims history. The state would license and oversee these pools, require financial reporting, and create a reinsurance program to reimburse 60% of certain high-cost claims.