Originally, the mission of the SADD chapter was to help young people say "No" to drinking and driving. Today, the mission has expanded. Students have told us that positive peer pressure, role modeling and environmental strategies can prevent other destructive decisions and set a healthier, safer course for their lives. And that is why SADD has become a peer-to-peer education, prevention, and activism organization dedicated to preventing destructive decisions, particularly underage drinking, other drug use, risky and impaired driving, teen violence, and teen suicide.