RecruitingBehavioural interventionPeru Decentralized HIV CareThe purpose of this study is to understand the processes by which HIV care is decentralized, an evidence-informed strategy to improve retention in HIV care, in Peru. Decentralization of HIV services has not been evaluated using experimental designs and urban decentralization studies of HIV are uncommon, so this study will lend important insights for future decentralization efforts in Peru and other countries.