Any HIV testing service delivery model should include mobilizing, testing and linking. When described as a service delivery model of HIV testing services, all three components are necessary and should be included in the design of the model. Here, we present the testing component that can be divided into three categories – health facility, non-health facility, and community. Additionally, HIV self-testing is described as its own category to highlight models that utilize this testing modality. However, it is important to note that HIV self-testing can be used within health facilities, non-health facilities and communities. Testing refers to the service delivery model implemented for distributing, performing and recording the results of the HIV test.