DAN is a not-for-profit 501(C)(3) organization that provides emergency medical advice and assistance for underwater diving injuries, and underwrites a wide range of research, education and training programs that promote safe diving. DAN is supported by more than 200,000 fellow divers with a further 60,000 international divers supporting DAN Europe, DAN Japan, DAN Southeast Asia Pacific and DAN Southern Africa.

DAN provides comprehensive training to the dive community by disseminating the latest information on topics related to diving safety through articles, reports, seminars, lectures and training programs.