“The Department of Justice‘s (OJ) Federal Bureau of Prisons (BOP) is responsible for the custody and care of over 219,000 federal inmates – a population that has grown by 27 percent in the past decade,” the GAO report states. “BOP is composed of 119 institutions, 6 regional offices, 2 staff training centers, 22 residential reentry management offices (previously called community corrections offices), and a central office in Washington DC.