Research has found that drug-involved women under community criminal justice supervision in New York City are at very high risk of HIV and other sexually transmitted diseases (STDs). However, to date, there are no evidence-based HIV prevention interventions that have been developed for drug-involved women under community supervision. Project WORTH is a study funded by the National Institute on Drug Abuse (NIDA) that aims to address this critical gap in HIV prevention efforts by testing the effectiveness of a group-based multimedia HIV prevention intervention among 420 drug-involved women who are under community supervision