Action on Smoking and Health (ASH) is a non-profit tax-exempt legal action antismoking organization based in the United States that has been solely devoted to the many problems of smoking for over 36 years. Its principal activity is to serve as the legal action arm of the nonsmoking community, bringing or joining in legal actions concerning smoking, and insuring that the voice of the nonsmoker is heard. It also serves as an advocate of the nonsmokers' rights movement.