Version 1, 2 and 3: Major topics include: skin/scuba equipment and techniques safety procedures, dry and wet suits, AGA and scuba regulations, line tender responsibilities, tethered and un-tethered, line searches, environmental dangers, dive planning and safety, underwater compass, physics/physiology, buddy breathing-safe, limited visibility diving, penetration dives, confined space dive, surf entries, ice diving, buoyancy checks/skills, search and recovery, blackout mask, head first surface dives, feet first surface dives, anchor retrieval, open water dive, underwater navigator, night dive, searches-fan and pier walk, and in-water firefighting. Certification: NAUI FDNY Municipal Rescue Diver Issued by National Association of Underwater Instructors (NAUI).