This report provides an evaluation of an 18-month quality improvement intervention supported by the USAID-funded Quality Assurance Project (QAP) and its successor, the Health Care Improvement (HCI) Project, in Thai Binh Province of Vietnam. The province, located in the Red River’s Delta in northern Vietnam, has 1.8 million population, an annual TB case load of 1600–1800 cases, and an cumulative number of 2188 HIV-infected cases. In April 2007, QAP, in collaboration with NTP and Thai Binh Department of Health, initiated an 18-month work plan to pilot-test a model for TB/HIV integration activities at the provincial level and in all the eight districts in the province. Assistance to the intervention transitioned from QAP to HCI in 2008. The project also promoted partnerships between the TB program and other public and private health providers in order to maximize coverage of the DOTS program. A number of activities to expand TB/HIV integration were carried out, including policy development; capacity building; maintaining the continuum of care; quality assurance of services; support for public and private partnerships; strengthening the monitoring and evaluation system; and conducting information, education, and communication activities.