Background. Nearly 90% of Veterans who complete trauma-focused therapy (TFT) for PTSD have remaining treatment needs. In the six-months following TFT, successful completers remain some of the highest utilizers of VA mental health services despite clinically meaningful symptom improvement. Our prior work demonstrated that Veterans who benefitted from TFT's primary post-TFT treatment needs were the practice and application of skills learned during therapy, with the goal of maintaining or building upon treatment gains. Veterans expressed low self-efficacy for meeting these goals without the support of their therapists and feared stagnation or relapse without ongoing contact. As such, we developed and feasibility-tested a therapist- assisted self-management program for TFT completers (EMPOWER) designed as a step down from active psychotherapy. The feasibility open trial demonstrated that EMPOWER is feasible and highly acceptable to patients. Further, findings suggest that the intervention was successful in helping Veterans maintain or enhance PTSD-related gains while reducing their mental health service utilization. These promising findings warrant a randomized evaluation. Significance. Interventions that meet Veterans' post-TFT treatment needs are urgently needed. Mental health providers are delivering ongoing treatment to this high priority cohort of Veterans without evidence to guide their treatment plan. Further, higher than expected levels of post-TFT mental health care utilization threatens the continued implementation of these highly effective treatments. For all Veterans to have access to the most effective treatments for PTSD, we must evaluate and implement interventions that prepare and enable successful TFT completers to step down from active therapy. Innovation. The proposed study is the first large-scale study of post-TFT care and the first to rigorously evaluate a self-management program to step-down from active to maintenance mental health services following a course of active psychotherapy. More broadly, we believe it to be the first intervention to directly facilitate an episodic model of mental health care. Specific Aims: 1) Estimate posterior probability distributions of EMPOWER's effects and establish likely ranges for those effects as compared to post-TFT TAU for Veterans' MH service utilization and self-reported PTSD symptoms. The subsequent Hybrid RCT will be designed after assessing the likelihood of detecting an effect for EMPOWER across a range of sample sizes using Go/No Go and Overall Power methods. 2) Explore the impact of EMPOWER compared to post-TFT TAU on Veterans'(a) self-efficacy for managing PTSD symptoms, (b) satisfaction with post-TFT care, (c) well-being & functioning (d) depression, and (e) secondary utilization outcomes. 3) Conduct semi-structured interviews with Veterans and providers to contextualize quantitative findings and identify potential barriers, facilitators, and strategies to facilitate future imple...