Start Taking Alcohol Risks Seriously (STARS) for Families is a health promotion program that aims to prevent or reduce alcohol use among middle school youth ages 11 to 14 years. The program is founded on the Multi-Component Motivational Stages (McMOS) prevention model, which is based on the stages of behavioral change found within the Transtheoretical Model of Change. The McMOS model posits a continuum of five stages in the initiation of alcohol use: precontemplation (has not tried alcohol in the past year), contemplation (is thinking about trying alcohol soon), preparation (is planning to start drinking soon), action (started drinking in the past 6 months), and maintenance (has been drinking for longer than 6 months). STARS for Families intervention materials are tailored to the individual’s stage of alcohol use initiation.