CMS has published a notice correcting errors in its November 24, 2015 final rule to implement the Comprehensive Care for Joint Replacement (CJR) model. While most of the changes are technical, CMS does clarify its methodology for incorporating the effective discount percentage determined by quality performance into prospective target prices. Target prices will be determined prospectively using a 3 percent discount percentage, and hospitals may experience a different effective discount percentage at reconciliation due to quality.