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 stated that positive peer pressure, role models and other strategies can help them say "No" to more than drinking and driving. And that is why SADD has become a peer leadership organization dedicated to preventing destructive decisions, particularly underage drinking, other drug use, impaired driving, teen violence, teen depression and suicide.