For scuba divers worldwide, DAN means safety, health and peace of mind. A nonprofit founded in 1980 at Duke University Medical Center, DAN is supported by the largest association of recreational divers in the world. As part of its mission, DAN is best known for its 24-hour dive accident hotline and dive health and safety research program at Duke University Medical Center. DAN America and its European, Japanese, Southeast Asian and South African affiliates (IDAN) are active in dive safety training, equipment and publishing.