The purpose of this SAMHSA program is to prevent and reduce alcohol use among youth and young adults ages 12-20 in communities throughout the United States. The program aims to: (1) address norms regarding alcohol use by youth, (2) reduce opportunities for underage drinking, (3) create changes in underage drinking enforcement efforts, (4) address penalties for underage use, and/or (5) reduce negative consequences associated with underage drinking (e.g., motor vehicle crashes, sexual assaults). In addition, applicants will build on strategic plans that were developed under a Drug Free Communities (DFC) grant.