Patients awaiting deceased donor liver transplant will be asked to enroll in this protocol at the time of identification of a potential living liver donor (see note note at end of description). Patients randomized to treatment arm will be encouraged to delay living donor liver transplant (LDLT) until they have received 12 weeks of treatment to allow for a treatment response, if any, to occur. The pros and cons of immediate versus delayed LDLT will be discussed with each patient; the timing of LDLT for patients randomized to no treatment will be determined by clinical need. There will be separate treatment strategies depending upon HCV genotype. Preliminary data and experience strongly suggests that interferon-based treatment clears HCV RNA in the majority of patients with genotypes 2 and 3, even at lower than standard doses (79% on-treatment response and 50% SVR). In contrast, clearance rates for genotype 1 patients with advanced cirrhosis may only be 28% on-treatment with an 11% SVR. In addition, treatment may be associated with significant side effects, intolerance, and increased risk of complications of liver disease. The HCV Committee for A2ALL strongly agreed that monitoring safety of pre-transplant antiviral therapy was essential and advised inclusion of an untreated control group. For these reasons, all patients with HCV, genotypes 1, 4, 5, & 6 infection will be randomized 2:1 to either treatment or control (no treatment). Randomization will be web-based to avoid prior knowledge of treatment assignment at any site. In contrast to the randomized design for patients with genotypes 1, 4, 5, and 6, all patients with genotypes 2 and 3 HCV will receive treatment. All genotypes will be included in the analysis of safety, tolerance, and complications occurring during pre-transplant treatment.