The purpose of this project is to implement a pilot study to investigate the feasibility and preliminary efficacy of a peer support specialist delivered violence prevention program for women in substance use treatment. The program entails a posttraumatic stress disorder (PTSD) screening, resource referral, and two session interpersonal violence prevention protocol for 60 participants. In this single arm trial, women are recruited from three substance use treatment facilities. Participants complete baseline, post-intervention, one-month, and three-month follow-up assessments. Self-report surveys assess trauma exposure, knowledge and behaviors related to interpersonal violence, and intervention engagement.