Massachusetts enacted legislation in 2000 establishing that a cardiac care quality advisory commission develop standards for collecting cardiac data. Click here for more history details about Mass-DAC. Regulations passed in April 2002 required all Massachusetts hospitals providing cardiac surgery and/or angioplasty to collect patient data. Under the direction of Sharon-Lise Normand in the Department of Health Care Policy at Harvard Medical School, the Massachusetts Data Analysis Center (Mass-DAC) collects, monitors, and validates patient-specific outcome data for all hospitals in the Commonwealth.