CMS is requesting public comments on how to define service areas for Medicare Quality Improvement Organizations (QIOs). Specifically, CMS wants input on four potential options CMS may use to divide work among a varying number of QIO contractors into service areas that are focused on quality-improvement-related work only. CMS is also seeking “fresh new ideas” regarding other options for organizing QIO contractors. According to CMS, this review is triggered by the evolution of the field of health care quality improvement and changes in health delivery systems. Comments will be accepted until May 31, 2013.