Quality assessment and improvement activities are as relevant to the public health sector and community-based health care organizations as they are to the rest of the health care industry. This article provides a framework for the types of quality assessment and improvement approaches available to public health and community-based health care organizations and provides two examples drawn from the field of women's health. The first focuses on a population-based assessment of the performance of the health care system using indicators for the nation as a whole and for the states specifically in a women's health report card. The second focuses on measuring quality of care provided to clients of one type of safety-net organization, Title X family planning clinics. Either type of approach can serve as the basis for developing strategies for improving the performance of health care organizations.