This fact sheet presents a summary of the effects of Chapter 58 of the Acts of 2006, "An Act Providing Access To Affordable, Quality, Accountable Health Care," as reported in the many studies that have focused on Massachusetts’ reform. This high-level review summarizes the findings in various categories, including insurance coverage, access to care, health care utilization, and affordability for consumers. The authors also developed a full bibliography as a companion to the fact sheet.