Provisional Flying After Diving Guidelines
Based on the recommendations of Divers Alert Network (DAN) and the Undersea Hyperbaric Medical Society (UHMS) from a consensus reached by attendees at the 2002 Flying After Diving Workshop.
These recommendations are based on earlier published work and recent experimental trials as described in the Workshop Proceedings. They apply to air dives followed by flights at cabin altitudes of 2,000 to 8,000 feet (610 to 2,438 meters) for divers who do not have symptoms of decompression sickness (DCS). The consensus recommendations should reduce DCS risk during flying after diving but do not guarantee avoidance of DCS. Preflight surface intervals longer than the recommendations will reduce DCS risk further.
Dives within the No-Decompression Limits
- A Single No-Decompression Dive: A minimum preflight surface interval of 12 hours is suggested.
- Multiple Dives per Day or Multiple Days of Diving: A minimum preflight surface interval of 18 hours is suggested.
- Dives Requiring Decompression Stops
There is little experimental or published evidence on which to base a recommendation for decompression dives. A preflight surface interval substantially longer than 18 hours appears prudent.
