The Step’n Out Collaborative Behavioral Management Intervention is an attempt to integrate public safety and public health strategies to optimize offenders’ outcomes. Step’n Out tests the relative effectiveness of collaborative behavioral management of drug-involved parolees. Collaborative behavioral management integrates the roles of parole officers for pro-social behavior, and delivers contingent reinforcement of behaviors consistent with treatment objectives. The Step’n Out study will randomize 450 drug-involved parolees to collaborative behavioral management or usual parole with follow-up at 3- and 9-months to assess primary outcomes of rearrest, crime, and drug use. If found effective, collaborative behavioral management’s wider adoption could improve the outcomes of community reentry of drug-involved ex-offenders. Tables and references