The investigators propose the Delivery Optimization for Antiretroviral Therapy Study - The DO ART Study - a prospective randomized study of strategies to optimize community-based ART initiation, monitoring and resupply among HIV-positive persons in South Africa and Uganda. The investigators will work closely with community members, stakeholders, local providers, and the local Department of Health (DoH) to integrate the community-based ART delivery with HIV clinics, pharmacies and labs. Following community sensitization, participants will be recruited through community-based HTC and HIV clinics. HIV-positive persons not engaged in care will receive point-of-care CD4 testing to determine ART eligibility. HIV-positive persons who are eligible for ART by national guidelines will be randomized to one of three ART delivery arms: (i) Home ART initiation and mobile van ART monitoring and resupply, (ii) Hybrid model with clinic ART initiation and mobile van ART monitoring and resupply, and (iii) Clinic ART initiation, monitoring and resupply - the current standard of care (SOC)