The field of substance abuse prevention has evolved towards a risk and protective factor paradigm in explaining the onset and escalation of adolescent substance use. This framework for understanding the problem has been developed and employed by researchers at the University of Washington, under Doctors Hawkins and Catalano, to assess communities for high-risk and low protection. Currently, there are no individual instruments to assess adolescents on these risk and protective factors. This article argues for the need of such an instrument, one that is time manageable and comprehensive. It is suggested that using a two-step method for assessment could meet these goals.