The quality of health care in prisons is lacking in many States. In particular, the California Department of Corrections and Rehabilitation (CDCR) is in the midst of an extreme legal remedy to address problems related to access to and quality of care; it now operates under the direction of a federally appointed receiver for medical care. To understand the current state of access and quality measurement and to assess strengths and weaknesses of current activities, the RAND Corporation conducted a series of interviews and site visits in the CDCR and related offices as well as document reviews (December 2008 to February 2009). Findings supported RAND's larger project goals to identify measures for use in a sustainable quality measurement system. (Published Abstract)