Project Methods: The investigators propose to use a randomized between groups repeated measures (baseline, post-treatment, 3& 6-month followups) design with 226 OIF-OEF Veterans diagnosed with PTSD to assess the relative effectiveness, measured in terms of symptoms, patient satisfaction, and costs, of PE delivered via Telemedicine vs. In Person formats. The investigators hypothesize that no differences (i.e., non-inferiority) between the two formats will be evident in terms treatment gains, patient satisfaction, treatment attrition, patient satisfaction and direct health care costs.