A chat with Divers Alert Network's Bill Ziefle. With a commitment to dive safety through education, National Association of Underwater Instructors (NAUI) joins Divers Alert Network (DAN), the industry's largest dive safety association, to promote and extend the reach of dive safety programs.  The centerpiece of this joint initiative will see DAN and NAUI come together to offer DAN's first-aid training programs to NAUI divers and members.