TEEN LINE, a confidential telephone service in Los Angeles, is described. Approximately 80 teenage volunteers & 25 mental health professionals participate in the program annually. Staff & volunteers also provide weekly community & school outreach presentations on topics such as suicide prevention. A 13-week training session prepares the teens for peer counselling. To date (1992), more than 115,000 callers have contacted the service & over 500 teenagers have been trained as listeners.