A wingsuiter should never open directly above or in the area where other skydivers are setting up for landing. In case of a cutaway he will be falling into canopies directly below him and in case of a malfunction he could fly into someone.
The USPA dictates, Minimum opening altitudes to be:
- All students and A-license holders — 3,000 feet AGL
- B-, C-and D-license holders — 2,500 feet AGL
These are guidelines but in all reality, with the added complications that wingsuit provides, people should open at least a thousand feet higher than they normally would, in order to deal effectively with any malfunctions or complications.