Patient Safety Organizations (PSOs) collect and analyze data voluntarily reported by healthcare providers to help improve patient safety and healthcare quality. PSOs provide feedback to healthcare providers aimed at promoting learning and preventing future patient safety events. Working with a PSO makes it possible for information from healthcare providers to receive certain legal protections and to be contributed to the Network of Patient Safety Databases (NPSD). Under the Patient Safety and Quality Improvement Act of 2005 (the Patient Safety Act), AHRQ certifies and lists PSOs. - Agency for Healthcare Research and Quality (AHRQ)