Systematically evaluates the California permanent disability ratings system used prior to the state’s recent workers’ compensation reform. California’s disability rating system has been criticized as being inconsistent and prone to promote disputes over the appropriate level of permanent disability benefits. This monograph follows an earlier interim briefing on California’s permanent disability rating schedule. The authors provide a systematic evaluation of the ratings system that was used prior to the state’s 2004 workers’ compensation reform efforts. Among other analyses, they examine the extent to which workers with higher disability ratings experience higher earnings losses.