Increasing interest has been shown in brief interventions for troubled persons, including those with substance abuse problems. Most of the published literature on this topic has focused on adults, and on the efficacy of these interventions. Few of these studies have examined the critical issues of enrollment and engagement in brief intervention services. The present article seeks to address the shortcomings in the current literature by reporting on our experiences implementing National Institute on Drug Abuse (NIDA)-funded brief intervention projects involving truant and diversion program youths. (Contains 2 tables.)