The AIDS Drug Assistance Program (ADAP) is a state-administered program authorized under Part B of the Ryan White HIV/AIDS Treatment Extension Act of 2009 (Public Law 111-87) providing FDA-approved medications to low-income people living with HIV who have limited or no health coverage. ADAP funds are also used to purchase health insurance for eligible clients and for services that enhance access to, adherence to, and monitoring of drug treatments. As of March 31, 2019, there were 7,737 clients enrolled in ADAP in Virginia.

With the implementation of Medicaid expansion on January 1, 2019, the Virginia Department of Health (VDH) began to transition clients from the ADAP to Medicaid coverage. As of March 31, 2019, 1,624 clients who had been previously receiving ADAP assistance are enrolled in Medicaid. The transition of these individuals into Medicaid coverage allows VDH to redirect some funds to expand HIV services to meet the changing needs of people living with HIV and further efforts to eliminate HIV in Virginia.