The document summarizes a study on how Massachusetts achieved near-universal health insurance coverage through its 2006 health reform law. Key factors in its success were: 1) Using existing data to automatically enroll eligible residents in Medicaid and the new Commonwealth Care program; 2) Creating a single, integrated eligibility system across multiple programs; and 3) Conducting an intensive public education campaign along with grants to community groups for outreach and enrollment assistance. These innovative strategies were highly effective in quickly expanding coverage to over 432,000 newly insured residents in just two years.