Because Hepatitis C Virus is a bloodborne pathogen like HIV, and transmission occurs via similar behaviors, successful HIV prevention strategies should be robust in preventing HCV but need to be tested. Motivational interventions, which aim to elicit a goal and plan from the patient to reduce injection and sexual risk taking, are particularly suited to address behaviorally-based changes. Motivational interventions are individualized and tailored to the risks and concerns of the participant, but can be standardized and evaluated to make this technique applicable in a variety of settings. The occurrence of injection drug use in a population with traditionally poor linkage to primary care, an enormous burden of illness, and high HCV and other blood-borne pathogen transmission risk, supports the use of motivational interventions in this group.