Reentry, in general, can be a challenging time for people as they are preparing to transition back into the community. For people with a substance use disorder, reentry is even more challenging because of the potential to relapse and experience overdose. Studies show that family support can improve outcomes for a person in treatment, however, and is a significant factor in predicting long-term recovery. This guide outlines ways to support a family member or loved one and evidence-based strategies for achieving recovery, including tips for families who want to support these efforts.